Go for high producing strains like hash plant,some of the best hash i have ever smoked was from subcool seed strains cheese quake another top notch hash plant is a- m -s from greenhouse seeds
Just look for high thc,strains super silver haze make's nice hash.
You have got the right idea though dude,who need bud when there is hash around get some decent bags bubble bags and you won't want to smoke bud again.
Bud after all is just the carrier of the med,make the hash right and you won't smoke bud again.
But the holly grail of hash is made from trainwreck or cheese.