Dimensional Transport (Multiverse) – The ability to move from one dimension to another within a Multiverse but not between comic book multiverses.
Angstrom Levy (Image) is part of the Invincible universe and has this power (The Official Handbook of the Invincible Universe #2).
Lockjaw (Marvel) has this power but Lockjaw is a dog and sometimes goes where he wants to go and now where the humans want to go.
Dimensional Shambler – Field Guide to Cthulhu Monsters
Shub-Niggurath – Field Guide to Cthulhu Monsters
The Bridge (Alternate Reality Viewer) was created by Reed Richards for dimensional travel within the Marvel multiverse in Marvel Fact Files #47 (Eaglemoss).
Eon can travel between dimensions in Marvel Fact Files #37.
Judge Dredd- “Judge Death the True Story” – 2000 AD #901
The Rainbow Bridge allows Asgardians to visit the dimension of Earth in Marvel Fact Files #21.
The Complete Seven Soldiers of Victory (DC)