Marketing a Market Place

Am looking for some one or a small team to Market my Upcoming project in release.

It is for a Market Place
- Web
- Mobile App

Eg: OLX, Quikr In India

Expectation
- Marketing Strategy
- Online Marketing
- Social Media Marketing
- Brand Management
- SEO
- Tele Marketing
-Other Ideas

Looking for a Partner who can work for Long Term hand to hand.

Its a Startup -- So think and propose more realistic approach!