Best GMO (flower + concentrate)

Title is pretty self explanatory but figured I’d give a little background. Moved to CO (Aurora) from Philly at the end of August this year and while the rosin has been pretty awesome and the flower alright, I have seen very little GMO especially in flower and while I know the flower is a bit lower quality here due to conditions I’m a big flower guy and assume all the GMO is just being washed?