While I have a 3-5yo girl, my nephew is the same age and he and DD play with almost identical toys.
Both love;
'home' stuff - cooking toys, cubby houses, babies (I know many dads are against this but my nephew and my DS both love them) and strollers/cots etc
play dough
construction anything - lego, paddle pop sticks and sticky tape, scrap paper scissors and glue, cereal boxes/cardboard rolls etc
crafty anything
musical instruments
balls of all shapes and sizes
gardening tools
bikes/scooters/outdoor toys where they're active
puzzles
blackboard and chalk/large chalk for concrete
Bookmarks