Yes, lots of different types.
I've tried the normal sort, Iyengar, Hatha and Ashtanga (power yoga....or evil yoga as I prefer to call it).
Some are more indepth and to do with alignment, quite a bit of partnership work, pulling and sometimes using bands to pull each other into the right positions.
I must admit I learnt a lot more about yoga and body balance from the specialist classes.
There's Dru yoga as well which one of my osteopaths teaches. Meant to be fab and there's a video of her on Youtube about it somewhere.