I totally get limiting the number of Clans until user counts go up. As they do, here’s a list of some communities you could consider adding:

• Paranormal
• Animal clans (Cats, Dogs, Pets, Cute)
• Movies
• TV
• Music
• Art
• Books
• Funny
• Advice (like AskReddit)

It would also be worth it to consider something that could be unique and original to Spyke. Reddit introduced things like AMA, AITA, TIFU and cake days. Having something unique to Spyke might help differentiate it.