Big dihhh Big troubles

Hey everyone,
I’m dealing with a really unusual and embarrassing problem and I’m hoping for some genuine advice.
Since adulthood, I’ve had a very large size (around 9 inches in length and 3 inches in width). Because of this, I keep tearing my underwear, especially during erections. I’ve tried several branded underwear options, but none of them seem to be comfortable or durable enough for me.
This issue has become quite stressful and affects my daily comfort. I know some people might find this funny or hard to believe, but I’m genuinely looking for help.
Can anyone recommend a brand or type of underwear that offers extra room and support for larger sizes? I’d really appreciate any serious suggestions.