Which retro handheld to get?

I want a retro handheld under 100$, i did research and need something very pocketable. I think some ideas i had was the miyoo mini plus, miyoo mini flip and flip v2, rg35xxh. I just need something that fits in my pockets easily, and has good enough performance. I was just gonna go with miyoo mini flip, but i think i might want analog sticks. Any recommendations are great thanks