Games like Karaoke Love Song
Games like Karaoke Love Song include Overcooked! 2, Gang Beasts, Brawlhalla, It Takes Two, and Audiosurf 2. We matched them by the tags players give Karaoke Love Song on Steam (Casual, Rhythm, Cinematic, Emotional, and Music-Based Procedural Generation): closest matches first, and among equally close ones the better-known games.

Overcooked! 2
Shared: Casual · Local Co-Op · Co-op

Gang Beasts
Shared: Casual · Co-op · Multiplayer

Brawlhalla
Shared: Casual · Multiplayer · Co-op

It Takes Two
Shared: Co-op · Local Co-Op · Multiplayer

Audiosurf 2
Shared: Rhythm · Casual · Music-Based Procedural Generation

PICO PARK
Shared: Casual · Co-op · Multiplayer

Bloons TD 6
Shared: Casual · Co-op · Singleplayer

AudioSurf
Shared: Rhythm · Casual · Music-Based Procedural Generation

Beat Saber
Shared: Rhythm · Music-Based Procedural Generation · Singleplayer

LEGO® Star Wars™ - The Complete Saga
Shared: Co-op · Local Co-Op · Multiplayer

Golf With Your Friends
Shared: Casual · Multiplayer · Co-op

DJMAX RESPECT V
Shared: Rhythm · Casual · Multiplayer

Party Animals
Shared: Casual · Multiplayer · Co-op

Overcooked
Shared: Local Co-Op · Casual · Multiplayer

Rhythm Doctor
Shared: Rhythm · Local Co-Op · Singleplayer

A Way Out
Shared: Co-op · Local Co-Op · Multiplayer

Just Shapes & Beats
Shared: Rhythm · Multiplayer · Co-op

BattleBlock Theater®
Shared: Co-op · Local Co-Op · Multiplayer

Human Fall Flat
Shared: Co-op · Multiplayer · Local Co-Op

Unrailed!
Shared: Casual · Co-op · Multiplayer

Rocksmith® 2014 Edition REMASTERED LEARN & PLAY
Shared: Rhythm · Casual · Singleplayer

Garry's Mod
Shared: Casual · Multiplayer · Singleplayer

Keep Talking and Nobody Explodes
Shared: Co-op · Local Co-Op · Casual

Chained Together
Shared: Casual · Co-op · Multiplayer