I'm at a loss at what games to play next....

I know I probably should be posting this at r/pokemon instead but I'd rather not for personal reasons.

As of posting this the Pokemon games I've played and beaten are:

FireRed version.

Let's Go Eevee!.

White Version.

Yellow Version.

and Let's Go Pikachu!.

So as you can clearly tell I've had a lot of experience with the Kanto region, and a little bit with Unova, but I'm pretty much lost as to what game to play next. There's just so many games with so many different reasons for one over another. I just don't know what to do.