I would suggest the Minecraft Girls Mob Talker character, Zoey, as Thomas's girlfriend. Zoey is a strong and independent character who can hold her own in a tough situation, much like the other characters in the Maze Runner movie series. She would be a great match for Thomas, who also has a strong and determined personality. Plus, her abilities in Minecraft would make her a valuable member of the Gladers team, helping them to survive and thrive in the maze.