This list is by no means exhaustive, I do not have the time or the resources to necessarily make this list in any great detail. They might not exist anymore either (also planets from Mystery in Space, or the golden age should probably be considered non-canon). There are a bunch in the comments section as well which dont have wiki pages
Appeared once in golden age
Knights of the Galaxy (and thus probably non canon)
MIS
MIS
MIS
MIS
MIS
MIS
MIS
MIS
MIS
MIS
MIS
MIS
MIS
MIS
MIS
MIS
From 52
Not the Batman, but the place he is from
The planet not the GL
