one who produces vlogs
vlogger
one who tours around the world
tourist
one who makes YouTube contents
YouTuber
one who teaches students
teacher
one who invent things
inventor
one who specializes in science
scientist
one who reports news
news reporter/broadcaster/journalist
one who plays the piano
pianist
one who plays drums
drummer
one who owns or manages a farm
farmer
one who draws cartoons
cartoonist