Best debut album

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". 

My top 3 debut albums
1.  Jim Hendrix Are you Experienced.
2.  Pearl Jam Ten
3.  Guns-n-Roses Appetite for Destruction 

Difficult decision with other debuts such as Led Zeppelin, The Doors and many others.  

Uriah Heep
"Very Eavy...Very Umble"😎

Ted Nugent S/T

Tie between Elvis Costello’s My AIM Is True, and The Violent Femmes debut