That is a struggle I go through every day with book reviews. I'd love it if people had read them. There are no book communities big enough so I usually post them on OCD. The ones who comment on them are the ones I interact with most of the time and aren't always from the community itself.
I guess the closest I think is suitable for you is (other than OCD) powerhousecreatives. I especially like this community for its spontaneousness.
Thats what I was thinking as well. I just asked them in their discord about it. PHC has got the most beautiful and professional looking posts and I dont want to tarnish that reputation. Lol.