You can add AI Horde (with for example HordeNG frontend) to the list as a free service for Stable Diffusion.
Great suggestion! I've added it to the list.
Anybody can post a challenge.
The rules of the game are simple, take any song you like from any genre you want, put the lyrics through any AI [you may weight lyrics as the AI allows] that you want and post the resulting image here under the post title Name That Song [GENRE]. After 48-72 Hours or if the answer is guessed sooner, edit the post's title to [Solved][Genre] and put the song title and artist (and optionally any highlighted lyrics) in a spoiler tag in the body of the post.
Other than that, enjoy.
Here is a list to a few AI image generators you can use.