There’s a few diapers that stand out for me right now. In particular I want to highlight the Bambino Cloudee, the Rearz princess Pink, Littleforbig Little Dreamers, and the Littleforbig Baby Cuties. These are all really good diapers for me in that they make me feel very little and helpless.
As for holding the most, I dunno. All of the ones I mentioned don’t leak on me even after 3 pees, and that is good enough for me ^^. By the third pee, my mind will have melted to that of a little baby, and my adult body is screaming at me that it needs its fun. My ageplay sessions don’t last all day ^^;;, usually around 4 hours, maybe 6 hours maximum. Do you do it for longer than 6 hours? Maybe if I had a parttime job, or more free days, I’d be able to relax more and give myself more time for my ageplay sessions.