what are some of the best flying type pokemon in heartgold/soul

Alolan Diglett

Skarmory

Togekiss

>>28731565
Noctowl is nice, you can catch it early and learns hypnosis. Murkrow and Skarmory are also good.

>>28731617
he has no attack power though so it's useless to teach him Fly

Don't fall for the Xatu meme. The only damaging psychic move that fucker learns naturally is Future Sight.

Delibird

a geodude that someone throw away

>>28731565
Crobat.

If Flying types that can't learn Fly are acceptable:
Scyther
Yanmega
Gyarados

Gilgar in HG only

For actual Fliers, Skarmory and Crobat

Otherwise, Yanmega is great, and Jumpluff... isn't terrible. Honchkrow's good and technically available pre-National Dex, but not without trading over a Dusk Stone.