The EV of raising first in tight/tough game is mostly from winning the blinds without a flop. Thus, in games like this you should open for a small size with a wide range from most positions.

The EV of raising first in a loose/fishy game is mostly from value betting and semi-bluffing effectively postflop. Thus, in games like this (for example in all brick and mortar games) you should open for 4-6x the big blind with a strong range from all positions.