To explain/describe: bright colors, often hot pink, teal, bright purple and bright blue and maybe yellow.

I don't know what this aesthetic called but you might like muse dash

I think it's Cyberpop,Kidcore, and Decora

There’s a good chance it could be Cyberpop, but looks similar to Kidcore. It has bright colors like Rainbowcore, but not exactly in the rainbow order, so I would say that’s Cyberpop.

I think it’s cyberpop/decora

Decora