Mods listed here do not require any changes to work on Vita. The most you'll have to do is convert them to work with Mod Compendium. Which can be as simple as renaming a few folders
Social Link Cheat Sheet - By Tekka
Classroom Answers - By Tekka
Cooking Cheat Sheet - By Gellyfish
Jack Sexo - By Pioziomgames
Igor Blinks - By Pioziomgames
P4AU Battle Portraits - By rudiger__gb (Has a native Vita version, however it is currently broken. Wait for an update/improved port)
No TV Static - By ShrineFox (Already has a native Vita version)
P4AU Follow-Up Portraits - By Wxnder (Already has a native Vita version)
Ghost Rider Outfit for Kanji - By Pioziomgames (Already has a native Vita version)
Epilogue Battle Costumes - By Pioziomgames
Red Summoning Effect - By Pioziomgames
Cirno Over Yukiko - By Pioziomgames
Floating Shadows - By Pioziomgames
Accurate Loki - By Pioziomgames
Imagine Event Outfits - By Pioziomgames
Alternative Persona Designs - By Pioziomgames (Already has a native Vita version)