Three ways:
Find a local writing critique group in your area. I'm sure they are around, just a matter of finding them. I recently joined up with a writing group and now have 6 potential new beta readers who also write fantasy.
The other way is to become an active member here or on other online writing communities. Start posting on the forums and making friends. When you get 30 posts, start putting up critiques - don't go overboard though, you have to be fair about your requests for help (other people need help too). Once you make some friends, you might be able to organise ms swaps through PMs, if anyone is interested.
Join
Critters, or similar sites.