How could eren manipulate grisha? I mean he was just seeing grisha's memories, wasn't he? Then how could that happen? (He was not even using founder's powers, zeke had control over that)

What did eren show grisha to convince him to give eren his titan

Eren Yeager, Villains Wiki

Can Eren Time Travel? How Did He Manipulate Grisha Yeager

Why didn't Grisha give Shadis the attack titan? : r/titanfolk

so why did grisha give eren the attack and founding titans…?? : r

Eren's actions of manipulating Grisha and 'killing' Carla share

Eren Manipulates Grisha to Survive – Attack on Titan S4 Ep 20

the duality of grisha yeager : r/titanfolk

Eren didn't enter paths and didn't manipulate Grisha in the 1st