I've had great luck ordering things on AliExpress. Sometimes it takes a long time for things to arrive (six weeks in Spain), but I've received some of my favorite swimsuits from them.
https://es.aliexpress.com/item/1005003140914870.html
These are great. I ordered one in every color - they're only five bucks each. One of them arrived badly sewn, but the other three are great. And the pouch, OOOF. It fits perfectly. The lining is easily removed or can be used as a cockring as I've done here. The pouch is super stretchy and will accommodate anyone in any state. It works best if you like to point down (I do), otherwise you wind up with a little extra material at the bottom of the pouch which I don't like. The yellow one is fun if you like to show off on cam. :)
