I will actually be posting an article about this very topic next week, but in the meantime see the following.
I’d suggest a table saw with a blade that is a high-speed .375” steel blade with 60 – 72 teeth and carbide tips. The blade should be double or preferably a triple chip— this helps with alternation of a flat “rager” tooth with a higher “trapeze” tooth which divides the chips when cutting aluminum.
For a miter saw same as the above. Go for carbide tips and plenty of teeth. Also, be sure to lubricate as you cut. Vegetable oil or WD-40. As the cut heats up the chips reweld and caused jaggedness.
Hope that is helpful and definitely check out next week’s post.