I’ve run Mobil1, QS, RGT, Castrol Magnetic, Valvoline, Pennzoil Platinum, Napa synthetic, Carquest synthetic, Super Tech synthetic and TGMO.
For some reason Castrol Magnetic was the quietest (and for that I liked it). My engines have tended to burn a little more oil with Super Tech and seem louder. Burned the least oil with RGT. And all the others seemed/performed the same or similar. I end up buying whatever is on sale or clearance...which right now isn’t a lot...best I could do recently was Pennzoil Platinum, two jugs for $44, with a $22 Shell rebate card.