Maybe the Logitech G502 X? It has the 3 buttons and I feel like the shape of the Rival 65 is pretty close to the G502 but would need to check. I also wouldn’t consider either of those to be small mice.
Are you palm grip or a very relaxed claw? I can’t quite tell from the photo. Hand measurements would help as well. With that info (and a little coffee for me) I’ll try to give a better recommendation.
Edit: if you’re willing to use a mouse with two side buttons instead of three you have a ton more options and we can start looking at some lighter weight mice.
Maybe the Logitech G502 X? It has the 3 buttons and I feel like the shape of the Rival 65 is pretty close to the G502 but would need to check. I also wouldn’t consider either of those to be small mice.
Are you palm grip or a very relaxed claw? I can’t quite tell from the photo. Hand measurements would help as well. With that info (and a little coffee for me) I’ll try to give a better recommendation.
Edit: if you’re willing to use a mouse with two side buttons instead of three you have a ton more options and we can start looking at some lighter weight mice.