Lead Gen - What Is My Next Step?

So I've recently started lead gen (late to the game I know). I have ran several Faceboook ads using their lead gen option for a mid sized city.

I've drilled down onto an optimized audience and now the leads are pouring in, all requesting to be called back for an offline service.

Now I'm merely a beginning lead broker. what is my next step? Do I go ahead and sell these leads and let an offline business do the sales talking, or do I nurture the leads some (and how?) and then pass the leads along? I'm in the transportation services niche (not car sales)

Thanks.

Start contacting companies to sell them too.