Now has the entire OSTs for both versions.

Shin Megami Tensei V OST (Original + Vengeance)

a Playlist of just about every smt battle theme I could find aside from early Smt games like smt 1, 2 imagine, etc. Due to not being as familiar with certain games some songs may be missing.                      Thumbnail art credit goes to: https://twitter.com/j4kura/status/1804674368112361542?t=7F1X4hb-xQRRFTKYOb_kcw&s=19

Shin Megami tensei Battle themes

Midnight Nexus

Waterflame - Control: Mind

Ephemeral

Shin Megami Tensei V: Vengeance Original Soundtrack

[D4] 5. Battle -primordial goddess- - SMT V Vengeance OST

[D4] 8. Battle -(her and) deepest void- - SMT V Vengeance OST

Annulus

Everyday Life

Jouin High School

Tokyo -Dawn-

ペルソナ５ ザ・ロイヤル　オリジナルサウンドトラックDisc2

Out of Kindness

Another Newgrounds song I couldn't find here so I decided I might as well upload it.
Again, I didn't make this song - credit all goes to the composer:
https://www.newgrounds.com/audio/listen/169589

cycerin - Dark Conviction

Shin Megami Tensei III: Nocturne and SMT III Maniax Battle Themes

Normal Battle - SMT III Nocturne

Normal Battle - Town - SMT III Nocturne

Fiend Battle - SMT III Nocturne

Common Battle - Amala Network - SMT III Nocturne

Normal Battle - Large Map - SMT III Nocturne

Playlist: https://soundcloud.com/oof2u/sets/shin-megami-tensei-v-vengeance

[D4] 8. Battle -(her and) deepest void- - SMT V Vengeance OST

SMT 5 V OST #2