The title says it all, if there are tie-ins I would like to read those as well.
His 19-issue run on Action Comics (which included an Issue #0 after Issue #12) managed to exist in its own bubble. All of the crossovers and such occurred in the Superman title until Morrison’s run ended. I suppose you could start with Issue #0 if you wanted…
So read his 19 issue run on action comics plus issue 0 and 12?
Read issues 0-18 of Action Comics.