trial and error. the infor given on breeder sites are usually bloated misinformation. Anesia claims one of their strains is 37%? lol.. utter bullshit. they probably over dried some material and tossed some extra trichomes into the sample, bwahaha... or it was some 1/million plant they found and tested but is not representative of the average plant you'll get -- these are not ploys solely used by anesia but nearly all sources of seeds to varying degrees of shadiness. These peple want money, so they'll tell you what you want to hear on potency, yield, and how long it takes to flower etc...
it's very unregulated / informal... word of mouth is the best source and that's shit 50% of the time, lol. Every grower thinks "their" plants are amazing, lol.
strain names will be hit or miss between various breeders. they may have some shared lineage but not all "specific name" will actually be that strain as opposed to some clone that was bought then bred with an in-house plant etc. Still, correlates, but won't be super accurate or precise.
try a wide variety of options until you find what you like. it's the only way to go. bulk sellers will be hit or miss. might need 10 seeds to find 1-2 great plants. Other breeders may give a higher percentage, but that can change by the year.
good luck. it's a bunch of marketing nonsense and a few good products out there. LOL