I have been lucky to come across several artist willing to create covers for me. As I have said before, I have lots of stories needing covers and some people when asked to do a beta read I discovered they were an artist too.
These are a few I have received.
Some of these looks better in reality than here.
Sometimes if a reader like your books they will refer you to someone they know. If you can get them for free, show your appreciation by using them for posters about your book if you don’t want to use it for a cover.