finding beta readers

[The Shrub Dragon]

i'm not requesting you guys to beta read don't worry


essentially i'm not new to the fanfiction game but i'm new to the beta-reading game as i've decided to enter the fullmetal alchemist big bang challenge and i just have no idea where to find a good beta reader.  the challenge blog has released a small list but for the most part their fanfiction seems a little..... removed from the genres i usually write for and i wondered if there were any #veterans who could tell me the signs of good/bad beta readers etc