Ever heard of Gutenberg workshops? Perhaps not but it's a beautiful location and should unisexual reproduction be of interest, do look at what we will organize 11-13 July in Ingelheim, which is a pretty old town near Mainz, which in turn is close to Frankfurt (thus easy to get to).
Since the info about registration costs is a bit hidden, I put it right here: 200€ for PhD students, 250 for postdoc onwards. Don't hesitate, the deadline for registering is May 18!
https://gutenberg-workshops.uni-mainz.de/registration-and-abstract-submission/