Ok, I'll be the one to say it...Where's the details?
This is an extremely vague post, are you thinking of collaborating with someone and need advice, or are you looking for someone to collaborate with?
If it's the latter, what do you want to do? Genre, length, budget, time period etc.
Sorry if this comes off as harsh, just thought someone should say it so you can get some feedback and find what you are looking for