Games like Shikhondo(食魂徒) - Soul Eater
Games like Shikhondo(食魂徒) - Soul Eater include Planes, Bullets and Vodka, Touhou Koumakyou: New Classic - the Embodiment of Scarlet Devil, DRAINUS, Vampire Survivors, and TouHou Makuka Sai ~ Fantastic Danmaku Festival. We matched them by the tags players give Shikhondo(食魂徒) - Soul Eater on Steam (Indie, Action, Shoot 'Em Up, Bullet Hell, and Casual): closest matches first, and among equally close ones the better-known games.

Planes, Bullets and Vodka
Shared: Action · Shoot 'Em Up · Casual

Touhou Koumakyou: New Classic - the Embodiment of Scarlet Devil
Shared: Shoot 'Em Up · Bullet Hell · Action

DRAINUS
Shared: Action · Indie · Shoot 'Em Up

Vampire Survivors
Shared: Bullet Hell · Indie · Casual

TouHou Makuka Sai ~ Fantastic Danmaku Festival
Shared: Indie · Action · Bullet Hell

TouHou Makuka Sai ~ Fantastic Danmaku Festival Part II
Shared: Indie · Bullet Hell · Shoot 'Em Up

LUFTRAUSERS
Shared: Indie · Action · Bullet Hell

Touhou Kouryudou ~ Unconnected Marketeers.
Shared: Action · Shoot 'Em Up · Bullet Hell

Bit Blaster XL
Shared: Shoot 'Em Up · Bullet Hell · Shooter

Revolution Ace
Shared: Action · Indie · Shoot 'Em Up

Touhou Tenkuushou ~ Hidden Star in Four Seasons.
Shared: Bullet Hell · Shoot 'Em Up · Indie

Touhou Fuujinroku ~ Mountain of Faith.
Shared: Indie · Action · Bullet Hell

Bright Memory: Infinite
Shared: Action · Indie · Female Protagonist

ZeroRanger
Shared: Indie · Shoot 'Em Up · Bullet Hell

Mirage Feathers
Shared: Bullet Hell · Shoot 'Em Up · Anime

Touhou Juuouen 〜 Unfinished Dream of All Living Ghost.
Shared: Action · Shoot 'Em Up · Bullet Hell

Rabi-Ribi
Shared: Bullet Hell · Anime · Indie

Touhou Kinjoukyou ~ Fossilized Wonders.
Shared: Shoot 'Em Up · Bullet Hell · Action

BLUE REVOLVER
Shared: Indie · Shoot 'Em Up · Action

Mushihimesama
Shared: Shoot 'Em Up · Bullet Hell · Action

Deathsmiles
Shared: Action · Shoot 'Em Up · Bullet Hell

ICEY
Shared: Action · Indie · Anime

Cyberhunt
Shared: Indie · Action · Shoot 'Em Up

Gun Wings
Shared: Action · Bullet Hell · Shoot 'Em Up