Games like Touhou Blooming Chaos 2
Games like Touhou Blooming Chaos 2 include Vampire Survivors, Dungeon Munchies, 永远消失的幻想乡 ~ The Disappearing of Gensokyo, ICEY, and Metal Unit. We matched them by the tags players give Touhou Blooming Chaos 2 on Steam (Action, Adventure, Indie, RPG, and Faith): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Bullet Hell · Indie · Pixel Graphics

Dungeon Munchies
Shared: Action · Indie · Adventure

永远消失的幻想乡 ~ The Disappearing of Gensokyo
Shared: Action · Bullet Hell · Anime

ICEY
Shared: Action · Adventure · Indie

Metal Unit
Shared: Action · Indie · Adventure

Death Must Die
Shared: Bullet Hell · RPG · Action

Streets of Rogue
Shared: Action · RPG · Indie

Enter the Gungeon
Shared: Bullet Hell · Indie · Pixel Graphics

Skul: The Hero Slayer
Shared: Action · Indie · Pixel Graphics

Halls of Torment
Shared: Bullet Hell · Action · Pixel Graphics

Hades II
Shared: Action · RPG · Roguelike

TouHou Makuka Sai ~ Fantastic Danmaku Festival Part II
Shared: Indie · Bullet Hell · Faith

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

Tales of the Black Forest
Shared: RPG · Indie · Adventure

Hero Siege
Shared: RPG · Pixel Graphics · Action

Bloodstained: Ritual of the Night
Shared: Action · RPG · Adventure

Megabonk
Shared: Indie · Action · Bullet Hell

Gensokyo Night Festival
Shared: Action · Indie · Faith

ScourgeBringer
Shared: Action · Indie · Adventure

BALL x PIT
Shared: Action · Bullet Hell · Roguelike

UnderMine
Shared: Action · RPG · Indie

Chrono Ark
Shared: RPG · Indie · Adventure

Zengeon
Shared: Action · Indie · Adventure

Rogue Heroes: Ruins of Tasos
Shared: Adventure · RPG · Action