I just realized that Dolly from Bite reminds me of Darlin.
If you don't know Bite, it's a book by K.S. Merbeth. It's like if the raiders you hear stories about in Fallout were the main characters, cannibalism included, and it's in the POV of a 16 year old who slowly sees them as her sort of family.
Anyways. One of the characters is Dolly. While she's a badass who can keep a stone face, she also cares about her group, especially the MC, Kid. And she's not always stone faced, she also smiles or gets visibly angry.
And her character and the way she acts and such, she somewhat reminds me of Darlin.
Ironically, one of the members of the crew is named Tank. And their leader is named Wolf. Which, you may be noticing a pattern. They all go by nicknames instead of official names, there's also Pretty Boy (which, funnily enough, I've seen people give Vincent that nickname, especially jokingly from Darlin...although this one is far from Vincent's level.)
And if anything, the guy, Tank, makes me think of David's patience mixed with a bit of Asher's optimism.
It makes me want to see Darlin switch between electric blue and hot pink wigs.
I was actually in the middle of a reread of it, trying to note characters appearances (there's actually a lot of good descriptions) because there was no fanart whatsoever, when I got into RA and just...didn't get back to the book for a few months XD
I feel like Wolf would like Milo and his take-no-bullshit attitude. I feel like those two would banter for a while.
Meanwhile Pretty Boy somewhat reminds me of Kody. Pretty Boy has his moments, but he's a bit similar. A coward who will leave others behind for his own ass. He does try to push himself on the MC when they were both drunk (Dolly stops him, and he later apologizes but it's never made where Kid just smiles and forgives. She straight up tells him that, and that he'd have to work to regain any trust from her). He uses his charm to manipulate. The only difference is I can feel some pity for Pretty Boy because he's like 17 or 18 who is abused by an old woman, implied to be going on for a while and he's stuck just accepting it (doesn't excuse him though). And that he's part of the main crew (spoilers: he does die, though).
I almost want to put the Bite characters into the Redactedverse. You think RA is underrated? I'm not kidding when I say the Bite fandom is literally just me. There was maybe two others, one here and one on ao3, but they're radio silent and didn't post much before. Sooooo the idea is only up to lil ol me.