I have heard there are companies and brands that can send you cards or charts that help you measure length and girth and a general shape of your penis in order to better order condoms that fit properly.
I am on the longer side (a decent amount above average), but I am larger (girth-wise) towards the tip than I am at the base. So condoms either fall off easily (if I get x-large ones) because they are too wide at the base, or they hurt (when I get normal ones) because now it is too tight for the tip.
Thx in advance.