What is the best way to find a startup partner?

I have an SAAS startup for travel industry. It is not doing good. It is a great product for the right company but because I'm a developer and not a marketer it is not doing well as a startup. Now, I'm working on a new product (it is also for travel industry) and desperately in need of a partner. I'm not looking for an investor, mostly because of I can't pitch the idea to an investor. Here are my challenges; - Where can I find potential partners? - How much share should I give for the partnership? or How to decide the partnership at this level?