Mr. Nice Black Widow is the original genetics. Developed while still working for Green House Seeds then he split. They can be pricey.
Nirvana WW is a cheaper alternative, but you'll have to do some pheno searching. Try buying a few packs and growing them out and picking out the best mothers, you won't be disappointed.
For that couchlock affect also try a few packs of Nirvana's White Rhino picking out that killer pheno.