Help me to gain fans and supporters

I am beginning a franchise and fandom about a character named Mr. Wogglebug and his friend, a little girl named Sylvie. My franchise is for entertainment and education purposes. My target audience is children and families, so I want to be able to reach out to teachers and parents. But I don't know how to do so. I need someone to direct me to places online where I can gain a fanbase for my franchise.