I recently saw someone swearing by men's gynecomastia compression shirts as opposed to binders, this was what they linked to me though I haven't gotten one to try out myself yet

https://www.amazon.com/gp/product/B076B5R4Q1

i think sizing might be weird though, iirc they said for this kind of binding you probably want to go a size larger than the sizing chart would indicate? but I'm really not sure, I bet it varies a ton