SB/BB v LP you should 3b TT+/ATo+ for pure value vs LP opening ranges. Your 3b bluffing range should have hands that arent profitable to call pre and they should be as many as your opp allows w/o beeing ecploitable vs 4b. Also rem you are OOP and you are trying to profitable 3b bluff pre w/o screwing this going donkey postflop.