Ive always just used imgur

Switched to File Garden a few months back and it has been working really well, easy file uploads, easy to get the links, and free :)

I'll be using file garden!! So many artists have been reccomending the site^^ plus it's free unlike most of the other options:']

This comment in a thread has a good list of alternative/the sites' features uvubb

Here's a site a lot of my friends are recommending! https://img-l.ink