Race a little first and learn as much as you can. From there you can start to understand what you want in a team. Some is for the perks, some the comraderie, some the support, everyone is different.

My buddy wanted me to race for the team he was on so I rode with them one day and their captain and I spoke afterwards. We mutually agreed that it was not a good fit that they had nothing for me (to support my goals) and that it would kind of be a waste.

Subsequently I went to another team that respected my goals of the NRC Series and would do all they could to have a leadout train, etc. I was in agreement to do all I could to blow fields up in road races.
Until you know what you want it is hard to know what to ask for.

My demands are going to be very different than yours but I have been around a little bit longer.