Here is a list of common chord formulas:
Dyads (not really a chord)
Major Dyad: R 3
Minor Dyad: R b3
5th (power chord): R 5
Major and Minor
Major: R 3 5
Minor: R b3 5
Diminished and Augmented
Diminished: R b3 b5
Augmented: R 3 #5
Suspended Chords
Sus2: R 2 5
Sus4: R 4 5
Add Chords
Add2: R 2 3 5
Add9: R 3 5 9
6th Chords
Major6: R 3 5 6
Minor6: R b3 5 6
6/9 Chords
Major6/9: R 3 5 6 9
Minor6/9: R b3 5 6 9
6/9 Chords
Major6/9: R 3 5 6 9
Minor6/9: R b3 5 6 9
7th Chords
Major7: R 3 5 7
Minor7: R b3 5 b7
Dominant7: R 3 5 b7
Half Diminished: R b3 b5 b7
9th Chords
Major9: R 3 5 7 9
Minor9: R b3 5 b7 9
Dominant9: R 3 5 b7 9
11th Chords
Major11: R 3 5 7 9 11
Minor11: R b3 5 b7 9 11
Dominant11: R 3 5 b7 9 11
13th Chords
Major13: R 3 5 7 9 11 13
Minor13: R b3 5 b7 9 11 13
Dominant13: R 3 5 b7 9 11 13