Your low hanging fruit may be partnering exclusively with:
1. a bridal magazine site
2. a wedding registry site

The travel-related services you offer are great for honeymooners and babymoons.

Startup travel:
1. partner with Y Combinator, et. al

In each case offer an exclusive service package. You could process purchases in a way that provides a percentage to the partnering platform. I'm available to detail this process on a call.