Comparable Strain to Granddaddy Purple?

Does anyone know the name of a strain that can be bought in the United States that is comparable to to Granddaddy Purple? This is for sleep and will be used for infused oil.

It would be especially good to find something at the DC Exchange since they ship to any state. I am just not familiar with any of the strains they carry.

I am an experienced grower but know very little about strains other than the ones I have always used.

DC carries some really good genetics, and if you contact Paul he's very knowledgeable and helpful. Dynasty Genetics, Mass Medical, Old World Genetics, and Katsu Seeds are breeders I've grown. And If you're looking for a reliable overseas source, Attitude https://www.cannabis-seeds-bank.co.uk/ carries Ken's as well as most everything you've ever heard of.