Brand: Hutchins, Sioux, IR, Chicago Pneumatic, Detroit,
Size 6"
I also prefer the type with the trigger on top the pad- rather than on a handle..
I bought this one as a "travel-bag" sander... for when I'm traveling to help a customer/friend on site. It's good quality, and comes with both style backing pads. I've been pretty pleased with it.
https://www.amazon.com/TCP-Global-A...ds=pneumatic+DA+sander&qid=1630951108&sr=8-44
As important as the sander, is the sandpaper. For a "beginner", I would recommend using hook & loop sandpaper. This type allows you to switch between different grits- without ruining the piece you just took off.
Say you use 80G to cut the shape down to where you want it.... take the paper off, and switch to 180G for removal of sand scratches and feathering of the edges... only to find out you didn't go far enough with the 80G... With H&L... you can just switch back to the 80G piece. You can't do that with self-stick sandpaper.
It also pays to use good quality paper such as 3M Gold, Mirka (it's ok), Norton (less ok)...
Keep a blow-gun nearby to blow the dust out of the paper OFTEN. It will last longer, and cut better.