Hollis has Cassidy's sympathies for the handful he has for a super. By sympathy, I mean she's thinking, "Better you than me," even if she gets along with Juno on a personal level. She'll also remain mum about his complications with Juno, since she's had some of those herself, though she would notice.
Lucas might not have as much to do with Hollis except where Juno is concerned, since he's been trying to hook up with her since she joined. Since those two aren't official yet, he's going to keep trying until there's some sort of claim staked, at which point he will reluctantly halt. I think he could have some fun with Levi, though. They're almost opposites, but Luke could try taking him under his wing either where powers are concerned (they both involve kinetic absorption and release, though in different ways) or with women. He would love to be his wing man, except, don't be surprised if he ends up trying for the same woman himself. He's a little bit of a hopeless ass that way.
As for Cassidy...I'm reluctant to offer her as a handler for him, if only because I know the amount of headdesking and facepalming she would do, but that could also be entertaining and she could be his handler, if you'd like.