I'm running a Beta Match (and don't let the name fool you, it's for critique partners too!). And it's not limited to Campaigners, so feel free to take part if you want. Here's an awesome post from agent Mary Kole that describes the differences between CPs and beta readers.
If you’re interested in taking part in my Beta Match, there are two options:
OPTION ONE: Put your details and what you’re looking for in the comments below, using the following template:
Name: (your name, pen name, or blogging handle)
Email: (your email address)
I'm looking for: (a critique partner or beta reader or both. Plus give info about the critiquing style/focus/etc that you want from a CP/beta reader, and whether you have work ready to be looked at now or are looking for a long-term partnership)
Some info about me: (anything you think a potential CP or beta reader will need to know)
OPTION TWO: Read through other comments in this post to see if someone who’ll suit your needs has commented. Then contact them directly.
Please note: Beta Match isn't only for those who have a piece of work ready to be critiqued right now. It's intended to be a way for people to find critique partners who can help them with their writing/revisions/etc over the long-term. Even if you're after a beta reader, you can still connect with someone now and swap work at a later date :)
Wishing you the best of luck finding someone!