Best debut album

Agree with OP that Can’t Buy a Thrill is a top debut.  One could argue that the Dan’s first two are also contenders for the best opening two.  My favorite is R.E.M.’s Murmur but it is hard to argue with Are You Experienced and Led Zeppelin. And then there’s the game changers...Never Mind the Bollocks and PJ’s Ten.  

Neil Young and Crazy Horse - Everybody knows this is nowhere. (I'm skipping his first solo release which did not include the band, so technically...)

Crosby, Stills, & Nash

Can't really figure out why Boston so popular. Radio pop with handclaps?

@tooblue  A very under-rated album. I wish they made more albums.

Jaco Pastorius' self-titled debut.  Audible sublimation. 

I'll second Pearl Jam's "Ten" - one of the best front-to-back debut albums I've ever heard from a song quality perspective - Hendrix, and may of the other usual suspects.

I would also add:
Norah Jones "Come Away With Me".
Gn'R "Appetite For Destruction".