Preparing Commercial Teams - Need Inspiration

I am preparing another round of teams for commercial purchase. I already have the baby blue Titans and Black on Gold Saints ready to roll, but am unsure of what to prepare next.

Note: let's keep it NFL for now although a Florida Gators set is a real possibility.

Teams will have 30 players each. What would you guys be interested in buying, and in what uniform style?

I am going to do four teams.