Hi Jessica, and welcome!
I don’t have a favorite brand, but many people here do list them in their profiles.
For ideas of what to wear if you’re short, I think it’s a matter of proportion, like making sure a midi skirt hits at the appropriate spot below your knee (just an example, not saying you have to wear midis, just that you can).
Just as important are your body proportions. The people on ylf who spring to my mind as “short” are not built the same at all. If you tell us a bit about yourself—your build, tastes, and environment—I bet people will jump in with some ideas for you. Filling out your profile a bit can help too—spammers often post messages very similar to yours, but with mention of a product, so people are suspicious of blank profiles.