Games like Therapist Simulator
Games like Therapist Simulator include Volcano Princess, The NOexistenceN of you AND me, Magical Princess, LoveChoice, and 小白兔电商~Bunny e-Shop. We matched them by the tags players give Therapist Simulator on Steam (Simulation, Text-Based, Interactive Fiction, Psychological, and Dating Sim): closest matches first, and among equally close ones the better-known games.

Volcano Princess
Shared: Life Sim · Simulation · Dating Sim

The NOexistenceN of you AND me
Shared: Interactive Fiction · Psychological · Anime

Magical Princess
Shared: Life Sim · Simulation · Dating Sim

LoveChoice
Shared: Dating Sim · Simulation · Cute

小白兔电商~Bunny e-Shop
Shared: Simulation · Dating Sim · Anime

Doki Doki Literature Club Plus!
Shared: Dating Sim · Anime · Cute

Fields of Mistria
Shared: Dating Sim · Simulation · Life Sim

NEEDY STREAMER OVERLOAD
Shared: Anime · Psychological · Cute

Chinese Parents
Shared: Simulation · Life Sim · Dating Sim

Lucy -The Eternity She Wished For-
Shared: Dating Sim · Anime · Simulation

Emily is Away Too
Shared: Simulation · Dating Sim · Text-Based

Love Delivery
Shared: Simulation · Dating Sim · 2D

and Roger
Shared: Interactive Fiction · Life Sim · Simulation

Emily is Away <3
Shared: Simulation · Dating Sim · Indie

The Sims™ 4
Shared: Simulation · Life Sim · Dating Sim

The Hungry Lamb: Traveling in the Late Ming Dynasty
Shared: Interactive Fiction · Dating Sim · Multiple Endings

他人世界末 On-looker
Shared: Text-Based · Dating Sim · Simulation

Stardew Valley
Shared: Simulation · Life Sim · Indie

The Test
Shared: Simulation · Psychological · Multiple Endings

Some Some Convenience Store
Shared: Dating Sim · Simulation · Anime

候鸟
Shared: Interactive Fiction · Dating Sim · 2D Platformer

The seven days i spent with you
Shared: Dating Sim · Simulation · Anime

Sani Yang's Laboratory
Shared: Simulation · Dating Sim · Text-Based

Tricolour Lovestory
Shared: Dating Sim · Simulation · Anime