Here are my flags sorted by their status. The list is incomplete, full list is merge of this and this page. You can see this list too.
Flags of countries edit
State flags for state languages edit
Modified state flags for more-state languages or multilingual states edit
-
Fijian (not best)
Combined flags for more-state languages edit
Flags of non-cognate states (some may be disputed) edit
Flags of country subdivisions edit
Flags of official subdivisions edit
-
Southern Altai (or here Krai?)
-
Northern Altai (or here Rebublic?)
Flags of unofficial subdivisions edit
Flags and emblems of cities edit
Ethnic and political flags edit
-
Central Bicolano (not best)
Historical and proposed flags edit
-
Ancient Greek (possible?)