Abel wouldn't say no to most of your roster aside from Saga and...Venat(?) though I think even if he hasn't spoken with her, he'd respect the hell out of her.
John and Saga are the only ones he knows so far, and he respects the hell out of them both and really likes John already. Neither would be off the table with enough time to get past his intense demisexuality. Don't think the rest of them would be likely to hit it off