I’m pretty happy with my 6 1/2 inch Ryobi cordless circular saw.

I also have a 7 1/4 inch Ryobi corded saw that I barely use because the cordless one is so much more convenient and is usually big enough to cut anything I’m working on.

Another plus for the cordless one is that the blade is on the left side which makes it easier for me to see my cut line.