Offhand,
Just about any microlight although I'd probably steer clear of the Chevvron or Jabiru for short grass strips.
C150, C152, F172, CH701, Escapade (group A or microlight versions are basically the same), Streak Shadow, Piper Cub (any version), Aeronca (just about anything).
Basically look for something with a stall speed under 50kn and power/weight in the order of 0.12 hp/kg or better (this is just from a back of envelope sum, and doesn't have any rigorous justification).
Aeroplanes I'd personally avoid for regular use from a short grass strip - most PA28s, underpowered heavy vintage aeroplanes (they'll land in it okay but can struggle to get out again), PA38, anything resembling a motorglider. Basically aeroplanes with small engines and/or small wheels.
High wings are probably slightly better for short field landings - they tend to float a bit less in ground effect.
G