The way i've been widening my 3bet range is by 3beting really wide against fish, like if I find someone 50+ vpip over 40+ hands and i've seen them do some fishy stuff.
I just 3bet them all my pocket pairs AJo+ KQo+ there is sick value against these players with top pair top/good kicker in 3bet pots haha I just make 3bets against fish a little smaller, unless i have AA/KK.
Please don't tell me this is exploitable because the fish are #1 bad and #2 less then 50 hands with me so they cant exploit me really, if they see my cards I can adjust!
But still only 3beting AA/KK vs tight players because most of those tight players are multitablers with huds, so they see my stat not who i made the 3bet against, they dont know that if i'm showing like 8% that it's only AA/KK vs them and 10% vs fish, and more commonly against fish.
I also sometimes bluff squeeze when I have one 10% nit raise and another one call him, normally they both have pockets and both fold them. If they play back I can just get outa the way if I have air! But this has worked for the most part so far.
Ok i think i rambled on for long enuf, got some poker to play!!