I’ve actually had quite a few people offer to help me with my cover art before (mostly because they thought what I had was bad). If you kindly and in good faith made a thread asking for cover art help, and maybe included a sketch or mockup of what you’d like, there’s a good chance you’d get help.
I have gotten into art recently but only do pencil sketches. I’d be happy to do something for you like I did a recent game: Untitled Relationship Project - Details but otherwise I’d try just making a thread.