I like Champion shaper bras (www.championcatalog.com ). They are non-flattening, and give/keep some shape. About 2x/year, champion has a sale on all their sports bras, %19.99 each for any style.
I like Victoria Secret's shock absorber medium support sports bras. They have removable padding in them to give you an uplift, as well as hide anything peeking through (LOL). I don't think they are online anymore, but you can try the store. HTH
I like Glamorise. It gives good support and doesn't give you one boob! You can find it at Athleta or Title Nine. They have a lot of good sport bras.
Alicia