Games like The Rebornor
Games like The Rebornor include Undertale, Yes, Your Grace, Emily is Away Too, Volcano Princess, and Emily is Away <3. We matched them by the tags players give The Rebornor on Steam (Casual, Indie, Time Travel, Choices Matter, and Multiple Endings): closest matches first, and among equally close ones the better-known games.

Undertale
Shared: Choices Matter · Multiple Endings · Indie

Yes, Your Grace
Shared: Indie · Choices Matter · RPG

Emily is Away Too
Shared: Indie · Casual · Choices Matter

Volcano Princess
Shared: Choices Matter · Multiple Endings · RPG

Emily is Away <3
Shared: Choices Matter · Indie · Casual

OneShot
Shared: Indie · Pixel Graphics · Choices Matter

LoveChoice
Shared: Choices Matter · Multiple Endings · Visual Novel

Melvor Idle
Shared: Casual · Indie · RPG

Vampire Survivors
Shared: Indie · Casual · 2D

Legend of Mortal
Shared: Choices Matter · Multiple Endings · RPG

Milk outside a bag of milk outside a bag of milk
Shared: Indie · Visual Novel · Multiple Endings

Matchmaking Inc.
Shared: Casual · Multiple Endings · RPG

OMORI
Shared: Indie · Multiple Endings · RPG

Papers, Please
Shared: Indie · Multiple Endings · Pixel Graphics

Far Away
Shared: Choices Matter · Visual Novel · Indie

The Test
Shared: Multiple Endings · Choices Matter · Pixel Graphics

Touhou Mystia's Izakaya
Shared: Casual · RPG · Pixel Graphics

Please, Don’t Touch Anything
Shared: Indie · Casual · Multiple Endings

Suzerain
Shared: Visual Novel · Choices Matter · Multiple Endings

Roadwarden
Shared: Indie · RPG · Choices Matter

Stardew Valley
Shared: RPG · Pixel Graphics · Indie

Coffee Talk
Shared: Visual Novel · Casual · Pixel Graphics

That's not my Neighbor
Shared: Casual · Choices Matter · Indie

Always Sometimes Monsters
Shared: Indie · Casual · Choices Matter