Sorry! I know I'm late on commenting to seriously everything lately! I still have my seven.
For Steve - Cat's a good roommate, respectful of stuff and all that kind of stuff and she's likely to be friendly and easy to get along with. I could see Becker getting along with him pretty well - Both Combat guys. Alicia will for some reason I think enjoy teasing him in a very friendly kind of way. She's a magic field agent.
Otherwise, I'm always happy to toss anyone at him.
For Zane - He's welcome to tell Alicia she's married and pregnant in NOLA. That can be confusing as shit for her and hysterical. Otherwise I have Claire who lives on the same floor and is my shrink. I'm happy to toss anyone at him as well!