He's currently Marco's closest male friend, he doesn't need to be paired with anyone to have appearances.
If they pair him with anyone, my guess is Jackie.
Bot Jackie and Tom are being build up as surprisingly nice characters, and it's very likely they'll both end up exes to make way for starco. Seeing how they've both expressed interest in romance it'll be sad if they're left alone in the dust, so they'll be paired together. this would also make Marco seem less of a dick if Jackie would already be halfway into the rebound with Tom and it'd just be a natural thing of recognising they're both more into other people.
Janna, meanwhile, is being built up as more and more of a psycho creep. She has a crush on a dead guy like an edgy emo chick and acts really inappropriately around Marco. She hasn't shown a lot of interest in romance.>>88402221
This, yes. Janna isn't the type who'd be good gf material. Janna and Tom are being developed differently - Janna is the psycho stalker comic relief, while Tom has legit serious issues and is seriously trying to work on them and is portrayed as vulnerable.
I just feel like the crew cares more about Tom than they do about Janna. Janna was originally just a side character they ended up using more because they liked her sass or something, but both Tom and Jackie were apparently planned from the start - Tom even got a celeb guest VA. So if the crew has to choose between a ship that's essentially fetish fulfillment for Janna but awful for their spicy little sinnamon roll Tom, or leaving the quirky crazy side character alone and giving Tom someone who'd be good for him and support his character development, I'm guessing they'd go with the latter.
If Janna ends up with someone, it'll be an all-new character, someone who'll be written to be strong enough for her. Maybe Tom can have an obnoxious cousin or whatever