Hi guys I need your help
This problem occurs from time to time and I don’t know how to adapt properly.

Hero: BU, 100BB
CO (solid player nothing out of line) opens to 2.5bb

How should hero adapt his range? SB and BB are LAGs (loose aggressive).
My normal game plan would be:
- Against fishes (loose passive) sitting behind → increasing flatting range (they would continue with a ton of hands against my 3bets)
- Against REG sitting behind → increase my 3betting range (otherwise they would squeeze me light)

But what should I do against LAGs: They are continue with too many hands (like a fish) but in the same time 4betting aggressive (like a REG).

THX

Tighten up. Less calls overall and very few calls that can't call a squeeze. 3bet some/lots of the hands that you'd normally call but now don't, how much of those hands go into the 3bet range depends on the CO.

General strategy against a lag is play tight, do not check raise your strong hand on flop and continue let them value own themselves. If you have a fd on flop, got it on turn? Check to lags, let them keep barreling

OPs question is about preflop. In position on the button.

exactley THX

I think you should not adapt your range much if at all. The guy is a solid player, probably opens a solid range. He should be the main focus for your adaption if one is needed at all, just play a standard range of hands you would against a CO open from the BTN. If you know what that range is, just play your normal game. If you don´t know that and just play on the fly, you´re likely overadjusting and ending up guessing with every KJo, 99, AT and 97s whether to fold, 3bet or flat, and it gets a mess real quick.

The presence of two overly loose players in the blinds should not play into your strategy too much imo; it´s imo doubtful that they are really getting THAT often out of line that adjustments are needed. If they are really squeezing something ridicolous like 30% here, don´t 3bet CO to keep your strongest hands in your range but 4bet/gii quite liberally for 100bb if it gets squeezed and folded back to you.

But I honestly doubt that, most loose players would just defend their blinds in this spot with a pretty wide range (as anyone should do.)
Overly aggressive players are fish as well. It´s just not as comfortable to play against them compared to loose passive calling stations.