For a VTube Studio model, you can try to draw some models in FireAlpaca or another drawing program that can export your work to .psd, then try rigging it with live2d free. If you can get the hang of it, you can use the pro free trial for 42 days. It's $14.34 USD for 30 days of pro version, btw.

I used totalvirus scan on the .zip that has the software and there might be a trojan (it could also be a false positive...), I did some research on any alternatives, and there's a github user by the name of "rOzzy1987" who made a better program, but it might be out of date by a year.

I was thinking about getting a diy macropad pcb with RGB support, multiple rotary encoders, and a tiny little OLED screen. I would use it for drawing and for streams/video editing. But trying to find the right pcb is difficult, so I might get one that's already made...