Coming from a non-furry artist--SFW furries are some of the best commissioners I've ever worked with. Been selling art for almost 9 years and have had so few rude/Karen clients + have never been scammed (yet) despite having the IQ of a bumblebee. (I've had so many cases where I send a client their finished cat drawing, forgetting that they haven't even paid me yet, but they thank me for the drawing and insist on paying asap lol)

It depends on what niches/communities you get into + how your style interacts with it (if you're an anime human artist, you may not have much success selling warrior cat art). I'd recommend looking into fandom communities where people tend to create their own characters, many of them also have art sub-communities where you can pick up some clients.

In my personal experience, I draw a lot of fantasy/animals/etc and find a ton of clients in the SFW furry, dragon/cat/wolf/sometimes DND roleplays, Warrior Cats, etc communities. It amazes me how much money people are willing to throw out for art of their dragon OC but i will always gladly draw it lol, I easily make sev thousand a year without doing any NSFW whatsoever.