Sadly, most of these are NOT new or recently updated fics. But I still thought that I should compile and post my own list of Newtibal fics that I found extra-awesome. I included general content warnings and my own personal summary!
Punishment by Darkspawnhorror (who is kaijudorkspawn on Tumblr)—Hannibal catches Newt sneaking into his shop and “punishes” him. Content warnings: Very rough BDSM play (spanking with a belt, slapping), but Newt is into it the whole time and safewords are honored.
Ethical Gray Areas by Perpetual Motion—Hannibal is Newt’s biology professor and Newt is crazy about him. Featuring lots of cute Hermann and Vanessa. Content warnings: Normal sexual content and the whole professor/student thing, but they are both adults and they figure out a good “ethical solution.” :)
you’re soft, i’m hard, and we can work it out by ClassyFangirl (who is sergeant-angua on Tumblr)—Newt gets all chubby and Hannibal loves it. This fic is so cute! Content warnings: Some of this fic deals with body insecurity and could be triggering for that. Other than that, there’s just cute sex.
In Which Newton Geiszler Teaches Preschool and Hannibal Chau Is Not a Supervillain by aunt_zelda (who is out-there-on-the-maroon on Tumblr)—This one is super-cute and has a sequel in the works, so I’m told. It features Raleigh, Mako, and Chuck as kids and Hermann as a grumpy teacher. No content warnings unless you hate anything that even resembles kidfic.
Wanting by ClassyFangirl/sergeant-angua— Hannibal calls Newt to discuss some freelance work, and it turns into actual discussion and then hot phone sex.
Scumbag Blues by marchingjaybird—WHY HASN’T THIS AUTHOR WRITTEN MORE PACIFIC RIM? This story is amazing! Newt gets a job with Hannibal and gets to know him, and also gets him to help Hermann out. All the while, Newt is having terrible nightmares and flashbacks about his time drifting with the kaiju. Maybe Hannibal can help him recover… Content warnings: Newt is suffering from PTSD in this, including disturbing people-turning-into-kaiju dreams. As for the happy kind of content warnings, this fic eventually has a smoking hot sex scene.
Wearing Your Heart on Your Wrist by aunt_zelda/out-there-on-the-maroon)—Soulmate AU where everyone’s soulmate’s name is written on his or her wrist. No content warnings—just ADORABLE SOULMATE LOVE.
Tying the Knot by hobbitdragon (who is also on Tumblr here)—Awesome A/B/O fic in which Newt is the Alpha and Hannibal is a very crafty Omega. This fic is an upsetting, hilarious, yet somehow still hot mindfuck! Content Warnings: I’ll just paste HD’s own warning—“Hannibal is very much himself in this fic, which is to say, not much of a romantic hero. There’s clear mental/emotional manipulation via pheromones, sexual coercion, sexual exploitation, threats of violence, and crass disregard for the feelings and needs of others, as well as mentions of torture and use of the word “Daddy” in a sexual context.”
The Boss Needs to Get Laid by aunt_zelda/out-there-on-the-maroon—Two of Hannibal’s henchpeople try to set up Newt and Hannibal. Very funny! No warnings—just implied sex.
In Which Hannibal Chau Honors Safewords and Newt Rethinks His Relationship Expectations- by aunt_zelda/out-there-on-the-maroon)—Newt has had bad experiences with BDSM relationships in the past, and Hannibal is a change for the better. A short, sweet fic. Content Warnings: Non-graphic references to past rape/abuse and Newt suffers a trauma flashback when he is triggered.
Coolest Dads in the World by ContraryIzbel—I never thought I could like a Newtibal kid fic, but this one is great! Hannibal ends up with an abandoned baby and basically dumps her with Newt. They end up an unconventional co-parenting relationship. Not even really shippy—just cute. The author told me she is planning a sequel, although I don’t know when it will be written.
Across the Airwaves by mia6363—THIS FIC IS SO GOOD! Newt and Hermann move across the world to start their lives over after the kaiju defeat, but not before Newt and Hannibal start a tentative friendship. Their friendship progress through phone calls until, as Newt says in this fic, “I might have—sort of accidentally—engaged in phone sex with Hannibal Chau.” And then Hannibal visits… Content Warnings: Awesome phone sex and then in-person sex, and lots of sex toys.
Glorious Work of Art by killerweasel (who is also on Tumblr here)—Hannibal worships Newt’s tattoos. Content Warnings: A little sex.
It Started With a Shoe by mia6363—Newt accidentally starts dating Hannibal. Hermann told him so all along. Content warning: A little sex.
You Need a Friendly Hand, and I Need Action by aunt_zelda/out-there-on-the-maroon)—I wrote the prompt for this one! Yay! Newt is over at Hannibal’s place, working late. When he goes to a guest room for the night, he starts jerking off while thinking of Hannibal…only to find out that Hannibal has a surveillance camera in the room, and Hannibal is happy to come in and help him out… Content warning: Obviously, the nonconsensual voyeurism of a hidden video surveillance camera!
Kaiju? I Hardly Knowju by confusedkayt (who also is on Tumblr here)—The great multi-chaptered work in progress of Newtibal! This fic has a great plot, so much character development, and lots of cute romance! If you feel like reading a lengthy fic, choose this one! I just hope Kayt keeps updating! For content warnings, just check the detailed warnings that the author herself puts on each chapter.
Supertheory of Supereverything by ThePenultimateAvenger—In my eyes, this fic is an unsung Newtibal work of greatness. Basically, Hermann and Newt try dating and break up, and then Hannibal helps Newt recover. They basically hang out and watch movies and smoke pot in this fic so far, and I find it oddly charming! This is an uncompleted WIP that hasn’t been updated in a while, so beware of that. Content warnings: Alcohol and pot use, plus Newt gets hurt in one part and uses prescription painkillers.
Smooth Operator by killerweasel (also here)—Newt gives Hannibal a blowjob in an alley. Then there is a twist that I’m still laughing about! Content warning: Just alley blowjobs…
I’m Almost Me by Schizzar—Another unsung gem of Newtibal! Newt has Otachi in his head, and the stress is running him ragged. Hannibal offers him a job, and a chance to get healthy before he starts. Then they form a strange relationship that starts with sex to calm Newt down and drive Otachi away, but ends up so much more. Content Warnings: It’s all completely consensual, but rough sex, a little Daddy kink, and lots of possessive Dom!Hannibal.
Made to Measure by hobbitdragon (also here) and Thaxted (also here)—This fic will make all of your orifices tremble in fear, but it’s so awesome! This fic features trans!Newt, who is treated to a buffet of awesome sex by the experienced and passionate Hannibal. Three chapters of hotness! Content Warnings (somewhat copied from the fic itself): Mentions of Daddy/boy dynamics, eroticized pain, a few moments of internalized transphobia, a comment that might be construed as insulting to Newt’s genitals but isn’t meant that way, Newt fearing peril even though Hannibal is nice in this fic, unsafe oral sex, rimming, physical self-consciousness, mild breathplay, and “depth training” throughout.)
In Which Hermann is dark, Newton is poly, and Hannibal Chau is pretty much the same by aunt_zelda/out-there-on-the-maroon—This is a two-part series that basically posits, what would happen if Hermann and Newt had ended up working for Hannibal instead of the PPDC, and then they all started dating each other? Content Warnings: Hannibal threatens people a lot, there is a reference to past murder, alcohol use, brief knifeplay, and Hermann and Newt have hatesex. For the second part, consensual bondage and temperature play.)
Taste Your Heart and Lick Your Health by irinokat (who is also on Tumblr here)—After they drift, Newt and Hermann share physical sensations. After a while, they also share Hannibal. Content Warnings: The shared sensations create nonconsensual voyeurism, basically, but they come to embrace it. Also, some consensual bondage.)
If anyone wants to read my own Newtibal fics, they are here!
Pretty well all of these were great. Even the ones where is not a kink I’m that interested in are well written and have enough plot to read them besides just the smut. Though many of them have EXCELLENT SMUT.