Here's my suggestions;
Top 10 Monstrous Supervillains
Top 10 Monstrous Video Game heroes
Top [However Many You Can Think Of] Weirdest D&D Player Races
Top 10 Mythological Demons
Top 5 Favorite Halloween candies (And I'm pretty positive what'd be Number 1)
Top Ten Favorite Non D&D Tabletop RPG Monsters
Top 5 Underused Horror Settings
top 10 favorite Courage The Cowardly Dog Episodes.
And for creepy programs to do profiles on, I'd reccomend Minnie the Moocher, the Will Vinton adaptation of The Mysterious Stranger,
that creepy-ass car commercial , this Israeli short called
Smile, Pink Floyd's the Wall (especially the animated sequences), a series overview of Gregory Horror Show and
The SandmanAnd I'd as like to second everythng Krader and Pyro-Gibberish said