Example of a post-human civilization.

To get you started on some ideas here is an example of a post-human race of beings.

Name of civilization: The galaxy kings.

Kardashev level: 3A: multi galactic at least 72% of all galaxies in the observable universe conquered- 5A ultra complex multiverse level+

History: The galaxy kings are the rulers of 84% of the known universe by the year 45000,000ad, ruling with a cosmic fist and a nuclear grip. They originally started out with just one solar system but after millions of years they created the means to generate artificial wormholes at will which allows them to travel anywhere anywhere in the known universe. Through the use of wormholes they travelled to various galaxies conquering them and bringing their inhabitants under a kind of cosmic totalitarianism. Through the usage of time travel they invaded many worlds in multiple galaxies including Earth as a means to conquer the universe. 500 octillion years after their first initial appearance they conquered all of the multiverse giving them practically infinite levels of power since they could control and manipulate the laws of physics in ways unimagined by us mortals. For example they could control quantum probability to such a degree that they could allow entire realities to phase out of existence. Although they began as beings of flesh and blood like us their bodies eventually rotted away until nothing was left but their spirits, these spirits eventually created containers for themselves out of dark matter and other exotic materials. After the death of reality they became part of the infinite expanse of eternal nothingness remaining so until reality set itself back to its initial conditions. To prevent themselves from going extinct they created a causal loop which would send them back to their origin point every-time reality ended.

As you can see this is an incomplete profile of a civilization but it does give you an idea of the type of civilizations we're talking about here.