"Iä! Shub-Niggurath!"
I start a cult, create some
Gof'nn hupadgh, mutate/change the local populace and wild life, spawn some Dark Young and do whatever the fuck I want because I'm pretty sure not only will I be no longer thinking like a human, but an Outer God trumps anything on Earth. Eventually I'll get bored with Earth and head for the stars to seed the universe with life.
Top three insert races:
Mongrel Culture the Culture Series
Typhon from Prey
Gems from Steven Universe
Since these species are at the height of their civilizations, the Culture is a galactic civilization and Gems are an intergalactic civilization. Obviously the Minds are going to want to study everything on Earth. Homeworld might try to destroy it as a threat. The Typhon will just try eat everything and stand a good chance of succeeding against weaker species considering a simple Mimic can easily kill an unarmed human, also they feed on psychic energy and they're needed to make Neuromods so there's that.
Minds will probably chat amicably with Anondites. The Culture also knows how to do deal with aggressive hegemonizing swarms.
Also I'd point out that the "height of civilization" is at least interstellar for several of the other species listed.