I haven't watched much in several years, but the fed I see hyped up the most is PWG. I hear AIW, AAW are really good as well. There's also niche stuff like ISW, Hoodslam and C*4 that I've seen mentioned. I'm not sure what Beyond Wrestling is, but I've seen that mentioned as well.
SHIMMER and SHINE are also still out there I believe as far as women's wrestling as well, but I couldn't tell you much about either. CZW is also out there as well and people seem to enjoy it more than they were a few years ago. There also wXw which still uses a lot of US and Japanese guys.
http://prowrestlingguerrilla.com/
http://www.aiwrestling.com/
http://aawrestling.com/
http://interspecieswrestling.com/
http://www.birdswillfall.com/ (Hoodslam)
http://lookmanofans.com/ (Beyond)
http://c4wrestling.com/home/
http://wxw-wrestling.com/