I was looking for something completely unrelated, and tripped over Georg Friederich Händel's profile. Even though he has 206 profiles in his branch, it's still not connected to the main tree.
I'd like to thank whoever has put in so much work in building out his family. And I also sympathise. It must be frustrating to have put all that work in and still not find a connection. I remember how frustrating it was to add hundreds of profiles to my branch and still not make a connection. I very nearly gave up.
So, I did add his maternal ancestors up to his great-great-grandfather Johannes Olearius (1546–1623) who was twice married and had at least 13 children. He was the founder of a well known an widely spread family of scholars in Germany. It should be possible to find a link between him and someone else in the main tree.
I will have a look into it later, but unfortunately my time is a bit limited. But maybe someone else is interested to solve this problem.
Thank you, Danny!