Where Are Some Places I Can Post My Friend's ICD Surgery GoFundMe?

Hi, odd question, but my friend has hypertrophic cardiomyopathy. They're 18 and just recently, an ICD implant surgery was deemed necessary. Where can I post their gofundme link?

I really am worried about their health, and I want to be able to get to as many people as possible so they don't have to deal with this alone.