Hey Buddy,
Let's make this happen.
Frankly, without the list of your preferred criteria it will be quite challenging to suggest the best route to sell your domain names.
However, based on my research there are flipping sites out there that can speed up the process of selling it. The traditional way is using sites like: Flippa,Sedo,Namepros , Ebay, Craigslist etc.
The most exciting way in my opinion is using whois lookup to get the contact details of the domain owners similar to yours and offer them your domain
Beside sales, I love this kind of a job that is why I highly suggest that we should talk and explore the possibilities where we can work together.
Looking forward.
Phil