I use aluminum oxide and get really nice results. I also have a Harbor Freight setup with blasting cabinet (table top unit with a mod to continuous feed return grit and filter the used) plus a standup compressor. It takes a LOT of air for continuous blasting, so I needed a big tank. Then, I needed to get an air cleaner to pull the grit out of the air in the cabinet so I could see. Before long, it looked like I was down the rabbit hole, but the results can be nice.
Laser etching became so much easier and cleaner, so haven’t used the cabinet in a while. I still have to use it for larger work.