L.S.
First of all, he's still a baby and needs attention more than anything else! Sit and read with him, colour with crayone, play-doh (MUST be supervised at this age), blocks, cars, read, teach him to use child-safe scissors and glue, simple wood puzzles, build a fort, hide and seek, sing silly songs, read, let him 'help' with chores you're doing: cooking, laundry, sweeping, dusting - these are all things they can help with at a young age (just expect the task to take twice as long! lol)
He's not old enough to play by himself for very long at all and needs guidance and stimulation. His little brain is picking up EVERYTHING he's exposed to, so make it rich and diverse.
Most importantly, don't look at playing with him as a 'chore', have fun WITH him! He's going to grow up SO SO fast and you're going to long for those days when he tugged on your leg for attention.