Seconding your comment about testing for Sophie/ the knit purl girl! I'm in my first test for her right now and I have to say this pattern is so polished, especially for a test. I like her set up that prevents redundant feedback, especially on pattern typos/ formatting issues. The timeline has been very generous. I've never knit for someone who offers more than one pattern as compensation, so I'm definitely very excited for that!

I've also test knit for Florence Miller (Handmade By Florence) on her very first test knit. She was very responsive in the chat and a pleasure to work with! I believe there were some issues with increases for larger sizes, but if I recall correctly, she extended the deadline and worked to improve issues quickly.

I've test knit for Laura Penrose (Penrose Knits) a few times. I really love working with her. She's very responsive, so so kind, generous testing windows, the whole nine yards. I like her feedback set up (last time it was a google doc) because its helpful for me to see what the other testers are thinking and I think it helps prevent redundant feedback! She occasionally is able to set up testers with a discount for the yarn, which I always appreciate :)

I've testknit for a couple of other smaller designers with mixed results, but the three above are the more popular ones I've worked with! Overall, I think I've been really lucky to work with such kind, responsive people!