Any of the following monsters can drop Evolution of Awe. You need 13 of those to get the Aura of Awe.
I would recommend you Wisteria or Jack Sprat, since they are the easiest ones to kill, but its up to you.
Good luck!
Aracara
Big Jack Sprat
Blood Titan (Monster)
DoomKitten (Monster)
General Porkon
Grand Inquisitor
Grumble
ProtoSartorium
Manticore
Mithril Man
Onibaba
Red Dragon
Shark Bait
Soulseeker
Ultra Blood Titan
Ultra-Carnax (Monster)
Ultra Iadoa
Ultra Lionfang
Ultra Manticore
Ultra Tibicenas
Undead Artix
Wisteria