https://rarity.game attributes

dump stats = 0

{5: [(19, 12, 10, 10, 10, 10)],
 6: [(18, 15, 10, 10, 10, 10)],
 7: [(18, 14, 12, 10, 10, 10),
     (18, 12, 12, 12, 10, 10)],
 8: [(16, 16, 14, 10, 10, 10),
     (16, 16, 12, 12, 10, 10),
     (16, 15, 14, 12, 10, 10),
     (16, 15, 12, 12, 12, 10)],
 9: [(16, 14, 14, 14, 10, 10),
     (16, 14, 14, 12, 12, 10),
     (16, 14, 12, 12, 12, 12),
     (15, 14, 14, 14, 12, 10),
     (15, 14, 14, 12, 12, 12)],
 10: [(14, 14, 14, 14, 14, 10),
      (14, 14, 14, 14, 12, 12)]}

dump stats == 1

{5: [(20, 10, 10, 10, 10, 8)],
 6: [(19, 14, 10, 10, 10, 8),
     (19, 12, 12, 10, 10, 8)],
 7: [(18, 16, 10, 10, 10, 8),
     (18, 15, 12, 10, 10, 8)],
 8: [(18, 14, 14, 10, 10, 8),
     (18, 14, 12, 12, 10, 8),
     (18, 12, 12, 12, 12, 8),
     (16, 16, 15, 10, 10, 8)],
 9: [(16, 16, 14, 12, 10, 8),
     (16, 16, 12, 12, 12, 8),
     (16, 15, 14, 14, 10, 8),
     (16, 15, 14, 12, 12, 8)],
 10: [(16, 14, 14, 14, 12, 8),
      (15, 14, 14, 14, 14, 8)]}

dump stats == 2

{6: [(20, 12, 10, 10, 8, 8)],
 7: [(19, 14, 12, 10, 8, 8),
     (19, 12, 12, 12, 8, 8)],
 8: [(18, 16, 12, 10, 8, 8),
     (18, 15, 14, 10, 8, 8),
     (18, 15, 12, 12, 8, 8)],
 9: [(18, 14, 14, 12, 8, 8),
     (16, 16, 16, 10, 8, 8),
     (16, 16, 15, 12, 8, 8)],
 10: [(16, 16, 14, 14, 8, 8)]}

dump stats == 3

{5: [(21, 10, 10, 8, 8, 8)],
 7: [(20, 14, 10, 8, 8, 8),
     (20, 12, 12, 8, 8, 8),
     (19, 16, 10, 8, 8, 8)],
 8: [(19, 14, 14, 8, 8, 8)],
 9: [(18, 16, 14, 8, 8, 8)]}

dump stats == 4

{6: [(21, 12, 8, 8, 8, 8)],
 7: [(20, 15, 8, 8, 8, 8)],
 8: [(18, 18, 8, 8, 8, 8)]}

dump stats == 5

{6: [(22, 8, 8, 8, 8, 8)]}

Valid point buys for https://rarity.game. Pick whatever set of 6 numbers that you want.

There are more valid combinations than this, but these are the better ones (though some are very situational). I've filtered ones with 3 or more odd scores since that isn't usually a good choice. Each are grouped by the sum of their modifiers (ignoring the dump stats). A higher numbered group is usually better, but best is situational).

A "dump stat" is a low ability score with a negative modifier. So "dump stats == 4" will have 4 scores of 8 (each giving a -1 modifier). 4 dump stats is probably a bad idea, but having 1 or 2 dump stats usually works well.

The complete list of scores can be calculated with https://github.com/SatoshiAndKin/rarity-scripts/blob/main/misc/point-buy.html