I try to keep my images separate from my instance in case something happens to it (and because I like having control/it’s fun), but I overcomplicate it and host an image server myself lol. That’s not much help though, so I’d reccomend finding an image host (not catbox-they seem to have bandwidth issues) like postimages.org or something. Try to find something that’s been around for a while/isn’t going to shut down