MX Red is the most commonly used switch, because of it being light.Looked at k boards no info next to item so had to dig around to find myself all seemed reds which now think i'd prefer browns if have more feeling!
Did find a Logitech prob next one down from G810? said romer they didn't seem to bad.
With few tries it's easy to tell it apart from Black which has similar linear "feel" but needs clearly more force to keep depressed...
You just can't tell their actuation point from feel when pressing key down slowly.
After short initial travel Brown and Romer-G have some resistance before again moving down with lower force.
Their actuation point is after that higher force/resistance point.
Rarely used MX Retro alias Blue you can again tell already from sound.
Anykind faster typing makes it keep old mechanical typewriter style sound.
And it has harder than MX Brown tactile bump before actuation.
Besides G810 and G910 Logitech has also couple other Romer-G keyboards.
https://www.overclockers.co.uk/search?sSearch=romer-g
Though there's still likely G710 and some other older models with Cherry MX.