If you contact the houses through email, a lot of them send out samples for free. For more info on that, check out this thread:
Another one that I can recommend is Fishbone96. I think she was one of the sellers at theperfumedcourt, but decided to stop and now liquidate whatever she has left through a blog. Selection isn't massive, but still a lot of good stuff there.
I also recommend friendly members on this broad.