DC Comics is about to reboot their whole line of titles or something. Unrelated to that bit of information, there is a DC Comics Wiki that catalogs all of the publisher's realities. In some form every multiverse setting is represented. This catalog covers everything!
At one time DC Comics owned the rights to produce Edgar Rice Burroughs' titles. They had a nice run of Tarzan which spun off Korak and Tarzan Family. There was a series that covered other Burroughs stories- like John Carter and Carson of Venus as well, called Weird Worlds. All of these belong in the Earth-ERB reality of the DC Multiverse.
Here are some DC Comics Wiki links of interest: