How many times the bet do you want to call a raise with PP, SCs, Axs, 1 gap SC?

$2\$5 game
Ep opens $20, hero MP 87s, A4s, 66, &.J9s etc?

Im assuming vs EP narrow range, will need a bigger multiplier than if Hero was on the btn or if it was HJ vs Btn etc..

What guideline is best to use for live poker?

Bart from CLP used to use something like
PP = 15x ($300 vs $20 open)
SC = 20x ($400 vs $20 open)
AXs = 30x ($600 vs $20 open)