What kinds are offered out there? I'm having a hard time finding them. I have no problem finding the YHM 4-rail gas block, bottom railed gas block, and single top rail gas block. I think the YHM gas blocks look a little cheesy though. I really like the look of the JP Enterprises gas block, but I want to see what other options are out there, because if there is something that can fit my tastes without spending 75$ on the JP, I'll be happy.

I was originally gonna go with a fixed front sight base but thinking how I'm going to have a magnified optic.. I guess I'll get a gas block with a rail on top and attach the YHM gas block mounted fixed front sight to at least look like a fixed FSB.

Google is your friend!  Woops, I just noticed what you wanted to spend.