Not that this is anything particularly vital to the gameplay, but I'm sure we all like to have a good idea what our characters look like (and give a good reference to others). This is something I've shared with a couple of my chats but I figure others might find some use in it as well, for those of us who don't feel comfortable showing our faces, don't have the costuming, or just look nothing like our characters.
https://www.artbreeder.com/browse - AI generated images, good for painting style portraits or pretty realistic portraits, although it takes a little bit of practice, patience, and the right "parents" to get something that's not too uncanny valley (especially with the painting creator), and it can be admittedly difficult to control specific facial features.
(generated with the painting creator and portrait creator respectively)
https://www.portraitai.app/ - upload a picture and the AI will make it painting/portrait style. The caveat is that it definitely tends to round out the face a lot and is not good for characters with dark skin or light hair, or older characters, but if you have any skill with editing this might be a minor problem for you.
(I actually used Artbreeder first and then ran one through PortraitAI for this)
Anyways, hopefully this helps some people get a more personal feel for/more control of what their character looks like rather than having to dig through stock images to find something that seems mostly appropriate. Feel free to add more resources/tools if you have them!