Essential Guitar Chords?

Question

What are some essential chords to learn after you learn the minor and major chords, and where can I find chord progressions?

Answer 1

Play 7th major and 7th minor and dominate 7. also dominate 9 chords and major 6 chords. then start adding color to those chords like adding sharp or flat ninths and elevenths and thirteenths.
MAJOR
1chord is major, 2 chord is minor, 3 chord is minor, 4 chord is major, 5 chord is major, 6 chord is minor, 7 chord is dim.
EX.
Dmajor, Eminor, F#minor, Gmajor, Amajor, Bminor, C#dim


make your own progressions using this pattern. 1,4,5 is very popular.

Answer 2

"Chord Chemistry" by Ted Greene - it will keep you busy for a year or more.