19 pitch Mercury Tempest Plus if you want/need bow lift and speed. 17 pitch Mercury Rev 4 if you have heavier loads and need more stern lift and low planing speed.
The “stock” prop is a 21 pitch. I don’t have any problem getting on plane, but bow lift is a little less than desirable but not terrible. I like bow lift and the extra speed, my old ranger’s bow would feel like it was sky high when you had it taped wide open and trimmed up and that ol’ girl would cut through choppy waters and wakes really well.