Collocations for tutor - noun

good
full-time, part-time
personal, private
peer (AmE)
advanced students who act as peer tutors

online
assistant, senior (both BrE)
college, university (both BrE)
course (BrE)
art, English, etc.

act as
become
He became tutor to the prince.

employ, engage (BrE), hire (esp. AmE)
His father hired a private tutor for him.

tutor for
She works part time as a tutor for Spanish.

tutor in
a tutor in mathematics

tutor to
He became a tutor to some of the sport's top players.
Roger Ascham, tutor to Queen Elizabeth