If you have a 75mm, then a 110/120 would be a good one. You are limited to up to 150, so if you a set of 3, you can have 75/110/150, or if you limit to 2, 75/135 or 75/150.

I have a 90/135/150 for my Goersi 45ps with the idea that if I take 2 cones, I would take 90 and 150, but if I only take one, I would take the 135.