You can reduce Soar’s cooldown to 3 minutes for 10,000 gold per continent with scouting maps.

Dracthyr Evokers can buy scouting maps from Krom Stoutarm in Ironforge and Estelle Gendry in Orgrimmar. They cost 10,000 gold each and when used, continents will count as “fully explored” and trigger the Dracthyr Familiar Skies racial passive that reduces Soars cooldown to 3 minutes. You probably want to buy Eastern Kingdoms and Kalimdor first.

 The vendors offer the following items for sale:

Scouting Map: A Stormstout’s Guide to Pandaria

Scouting Map: Cataclysm’s Consequences

Scouting Map: Into the Shadowlands

Scouting Map: Modern Provisioning of the Eastern Kingdoms

Scouting Map: Surviving Kalimdor

Scouting Map: The Dangers of Draenor

Scouting Map: The Eastern Kingdoms Campaign

Scouting Map: The Many Curiosities of Outland

Scouting Map: The Wonders of Kul Tiras and Zandalar

Scouting Map: True Cost of the Northrend Campaign

Scouting Map: United Fronts of the Broken Isles

Scouting Map: Walking Kalimdor with the Earthmother