best is sous vide but you need a sous vide cooker which keeps the temp constant. you will not even need a knife...
second best is salt on both sides, then fridge for 1-2 days
best 2 days in my experience, 3 max
go for marbled, fat is good, healthy. fat gives it the taste
buy the huge pieces of prime rib from costco and cut it
or buy from the farmer if you can
