I didn't seen any mention of Tony Pai's quite good 3x3 font (only uppercase):
https://tonypai.itch.io/3x3-pixel-font
A bunch of these appear to be 9x9-ish? (B, P, Q, R, Z, 0, most of the non-alphanumerics...)
A bunch of these appear to be 9x9-ish? (B, P, Q, R, Z, 0, most of the non-alphanumerics...)