how do i handle aggressive pf play?

what do you do when players are 3betting and squeezing often?

for example, i openraise in CO and a player behind 3bets me. i've seen this player 3bet me and other players before and his 3bet range is not just limited to AK and TT+. can i call the bet with 89s, AJo. what hands can i call the raise with assuming he always raises to 3x my bet or more and we're playing with 100bb stacks. what if he raises to 4x my bet? what if i'm in position or OOP?

should you ever 4bet bluff (and then fold to a 5bet push)?