I am a completionist collector with certain characters. I look for titles featuring not necessarily appearances. For instance, Tim Drake’s Robin, I am in the process of finding all mini series, one shots, else world stories, series anything featuring him. Does anyone know of a site or app or anything to look to for a checklist of sorts to make sure I have variants, obscure titles I might not have heard of and basically to make sure I am complete?
I created a thread called Character Publication Order in the Comic Book Board that should be able to help. There are a few links from other individuals, so someone will definitely be able to help you out if the links don’t. I’ll bring that thread to the top, so it’s easier to find.