I was reading some transformers fanfiction and it's a solely underutilized idea to have humans and Cybertronians be in a symbiotic relationship. In nature all the time big animals will rely on smaller animals' help.
For example humans could give repairs, clean them, and help them reach smaller places. Cybertronians can give transportation and protection of course. They're emotional benefits too; humans are really nice soft things to touch and humans like having big robot friends :3.
So I'm imagining transformers realize how useful it is to have a human partner around so they start going around trying to get one. Anyways this leads to shenanigans of course and a lot of cracky moments.
Suspiciously nice looking car in a driveway with its door opened: ....
The random human who owns the driveway: ...
Human: *turns around* Screw that! I'm not becoming part of the human distribution system today, no sir I am not.
Cybertronian: *sad beeping noises*