I would be delighted to have covers for my work. If you post your art on AO3, there is a linking function to connect related works so more people can see it. My works are here.
Art for my original work is also welcome, but there's a lot more of that, so let me know if you're interested. If you have favorite topics I can help you find things you'd enjoy drawing.
Also, my friend dialecticdreamer does fanfic of my series and is currently looking for new readers. She'd probably be interested in art too. Mention me if you drop by there, and we can both get ficlets.
Yes ...
My most popular fanseries is Love Is For Children, which has a list of photogenic scenes.
You might also like the Crossover Content page on Schrodinger's Heroes.
Art for my original work is also welcome, but there's a lot more of that, so let me know if you're interested. If you have favorite topics I can help you find things you'd enjoy drawing.
Also, my friend
My transformative works policy says that folks are generally welcome to use my stuff as art inspiration.