I have used a few width exercises and they do work.
Pan squeezes, toilet compression are the most common but the best for me was the ATS rollers, but they aren’t for newbies and just advanced users.
I’m very sure they are here already and Wadzilla talked about them, think allot thought it might damage the dorsal nerve and it involves a rolling pin going across the penis on a flat surface while erect.
Its dangerous, obviously if you go mad and don’t use your brain but I gained just short of 1/4 inches by using that method and its now cemented at 2.2 inches uniform erect.
For newbies and those not wanting to do it than go for the toilet compressions and pan squeezes which also work.