Got almost all except flying ones (Pidgeot/Fearow/Charizard/Dragonite) and Beedrill (Let's Go Eevee exclusive).
Don't use lures to hunt them it'll increase the wild level encounter which is clearly not what you want!
If you find any method I take, it's almost impossible to get the Dragonite and Charizard without one.
Plus, if someone started a collection of GO underleved and want to make it public I have some.