We are also looking for "lynn" names. Reason being is that I have two middle names honouring both of my grandmothers and would like to carry on the tradition. However, growing up having two middle names has been a pain in the butt when it comes to paper work, driver's licenses etc, and I don't want my child to have the same issues. The middle names would be Linda and Karen, so I've decided choosing a name that ends with "Lyn" would help carry on the tradition without having two middle names.
The ones I really like are Gracelyn, Madilyn and Jocelyn. My husband and I both really like Gracelyn so I think it's our top contender for now (especially because it's pretty much the ONLY name that we both like since we seem to have completely different styles). I also love it because I've never heard it in our area and it's not too far "out there" in terms of being different.
Good luck with your list!! Our boy list has also been a bit more challenging! :)