I need a greenhouse or some such thing as my back windows just aren't the best for plants but it's all I have for now.Typically, the smaller, shorter succulents have evolved to be this way because they have the sun blasting on them. There definitely as many species to consider, but most of them will grow a little leggy if put in less sun, or just die (typical with harder to care for plants, which I will not be recommending).
I'd say look into sedum, anacampseros, crassula (although you'll have to trim those back to keep the compact look), and mammilaria
Thanks for these suggestions, I am going to go do some research on them!