Depending on which platform interests you it might or might not be avaialable. A quick search for the Commodore 64 brings up a lot of info:

https://www.c64-wiki.com/wiki/Forth

Seems like there might be good hardware support for Forth on the C64

There was a really neat looking FORTH for the C64 focused on game programming: White Lightning[0]. oh - it runs on Zx80 too... I always wanted to play with it as a kid, but never got around to it :-/

0: https://www.forth.org/lightning.html

I got it loading in a Commodore 64 emulator. It seems cool but I don't really know what I'm doing just yet.

The download I found had a full manual so I might see if I can figure out how to do some kind of graphical stuff.

Good Luck!

There are new versions of the classical 80s computers such as the Commander X16, Zx Spectrum Next, and C65. They're pricey, but I think at least two of them have Forths. It might all be easier to go with an emulator too.

As of right now, I'm happy enough to play with emulators and/or the MiSTer. I was initially excited about the Commander X16, butI've been a little disappointed with the concessions that the 8BitGuy made, and I feel I'll have enough fun with emulation.