This isn’t all-inclusive, but here you will find MANY great orders at the website of the Council of Major Superiors of Women Religious :
If you click on the link to look at the photos, you will see a good number of the sisters in all their beautiful habits - lots of young ones too.
Religious life in the US is making a come back - mark my words, it is - and the orders listed here at the Council of Major Superiors of Women Religious are on the vanguard of the major renewel that is just getting started. There are a lot of other good groups out there, to be sure (Not saying this is the only place to find them) but my experience with the Council of Major Superiors of Women Religious is that they don’t fool around! With them, you know you are getting the good stuff!