The only two I found so far was My.Size that seem to have a wide range of sizes. Not just XXXL but all the way down to slim. Another thread there was a guy asking about smaller condoms. Opposite problem of the OP here and I mentioned to him to check this company.
they have instructions for measuring and then you enter into their system it comes back with a recommend number for your fit.
Use that # to order your size. Rather than order from these websites I found a size close to mine on Amazon for my size and it still took 3-4 weeks so not stocked here in NA I think both these companies operate manufacturing over in Germany.
MY.SIZE PRO condoms
MY.SIZE pro: Your perfect sized condom in 9sizes for more safety & feeling. MY.SIZE condoms fit right and feel right.
pro.mysize-condoms.com
The other company was called "One"
Shop ONE® Condoms made with Sensatex®—our ultra-soft, hyperthin, extra-lubricated vegan latex, triple tested for strength. Discover 52 custom-fit myONE® sizes and bold, artistic styles.
onecondoms.ca
but My.Size had a couple widths more than One.
I can use the Magnum L or Skyn Large but alot of the times they back off. Not because their not long enough just it's difficult to roll it down properly and creates tension in the rubber and so annoying to keep doing a condom check and position back in place.
My size condom worked like a charm. Rolled down easier, staying in place the whole session and more sensitive feel.
With all the different sizes could be an option for anyone wanting to try a perfect fit and see if there is a difference.