Finding a critique group is hard. Integrating into one is even harder. To help you think through the process, I'm sharing the first sections of Chapter 5, "Writing Tribes," from my recently published book, The Diction Dude Essential Guide to Getting Started as a Professional Writer. This PDF offers some thoughts about critique as well as a pair of checklists for critiquing well, and being critiqued with grace.
May this PDF offer you some degree of help on your journey!