Self-creation is nonsensical (violates non-contradiction and all reason);
In my view the laws of reason are just as empirical as the laws of physics. So you have to be careful with what you dismiss as unreasonable. The universe is not bound by human-created reason. Quantum mechanics puts lie to the rule of non-contradiction. Set up a double-slit experiment and fire one electron at a time. When we observe which slit an electron went through, it either goes through A or B, but not both. And yet, we observe an interference pattern, so we have to conclude that the electron went through both slits. Both slits and not both slits. A contradiction in reality, right?
On another note, there's another possibility in the Creation by Other category besides something God-like: Creation by Other Universes. One possibility is that a black hole is where a piece of spacetime twists off from a universe and inflates into its own universe. Universe Zero begets Universe One and was begotten by Universe Negative One. Every universe has a beginning and an end (big rip, heat death, or big crunch), but the set of all universes is eternal. Perhaps in the physics of the metaverse, the null set of universes is impossible. Or, the actual number of universes is infinite and always has been.