You can get Panaracer Gravel King SK in 27.5x1.9 (a great tyre for road and trail) but I think they would be too narrow for 35mm rims (I'm running 700x43c on exal 19 on my Cross-Check).
WTB Nano are available in 27.5x2.1 (I've used 700x40c in the past) another good road/trail tyre.
Edit:
Sheldon Brown website suggests
"A general guideline is that the tire width should be between 1.45/2.0 x the inner rim width" This suggests any tyre between 50.75 and 70 would run OK on 35mm rims.
2" is equivalent to 50.8mm so (to answer your original question) 2" tyres should be OK on 35mm rims.