ỏ latin small letter o with hook above (U+1ECF) @ Graphemica

File:Latin letter O with dot above right.svg - Wikimedia Commons

Charbase: Latin Extended Additional

Ǫ latin capital letter o with ogonek (U+01EA) @ Graphemica

õ latin small letter o with tilde (U+00F5) @ Graphemica

ǿ latin small letter o with stroke and acute (U+01FF) @ Graphemica

U+00F8 LATIN SMALL LETTER O WITH STROKE: ø – Unicode – Codepoints

ỏ latin small letter o with hook above (U+1ECF) @ Graphemica

Charbase: Latin Extended Additional

Ả latin capital letter a with hook above (U+1EA2) @ Graphemica