Help with writing my first story?

I’m having a go at writing my first story. I have 6 characters i want to introduce but i dont know how to do that. I want to put emphasis on who they are to the main character of the story, where they live and what they do. I want this to be an introduction type story if i ever write more about these characters. The thing is i do ALOT of worldbuilding for these characters and i don’t know how to write about them or the setting without writing too much information at once. Can anyone help me?

Third person