I bought some Elegoo PETG Rapid from Amazon, I had great luck with it. It prints cleanly, has a great finish, and prints look good. It will print at 125% speed, and most of the time it will also print at 166% speed, but I have had a few prints fail at this speed. Most important is to make sure it is dry dry dry. I usually dry mine for at least 12hr @ 50C, down to below 20% RH. I also keep it in the dryer, my A1 Mini is set up so that it feeds thru the AMS directly from the dryer, and I always turn the dryer on before starting a print to preheat the filament.
It worked so good I bought another 4 pack of filament, and it’s almost gone so I have to order again.
MG