I have made a few with Stirling for bittering, Saaz late.
From my old memory bank.
American Hop. - Noble parent. (HMf=Hallertau Mittelfrüh)
Stirling - Saaz
Santium - Tettnang
Mit. Hood - HMf
Liberty -HMf
Vangaurd-HMf
Ultra-HMf
US Tettnang = Fuggles. DNA testing
I like that list. I know that hops like Amarillo, Citra, Mosaic, etc. are all the rage but I almost always have [what I call] clean, American hops on hand. Liberty, Crystal, Mt. Hood, Ultra, Santiam, Sterling, Vanguard, Glacier and even US Goldings. I generally don't use them to sub for Noble hops in lagers but they could certainly be used that way. I typically use them in pale ales, ambers, reds, blondes, etc.