I used to heat my home with wood and cut 12-15 cords annually. I ran stihl and echo. In my opinion the echo cs 590 Timberwolf cannot be beat by any other sub $500 saw.
If you want more power with any brand do a muffler mod. Also carb tune for different temperatures and touch up the chain with a file every couple hours as it makes a huge difference. Lots of YouTube vids out there on it.
A 20”+ bar is nice If you have the power to back it, otherwise 16-18” will get the job done.