Man, I'd love to have that kind of problem!
If you work by yourself it's unlikely you would be running more than 1 tool plus a DC and lighting (and perhaps an air compressor?) at the same time. 60 amps min should do. I would want to put a subpanel in the garage of at least 60 amps, probably wouldn't cost much more to go to
100 assuming the main panel is compatible. You would have to install a 2 pole breaker in the main panel, a 60 or 100 or whatever panel in the garage, and adequately sized wiring between them.