June is already high season in Heidelberg, you may use any booking system or the one HD tourist information provides.
The following two hotels offer a few rooms at a special price until Monday, 30th May.
Both hotels are close to the central bus hub Bismarckplatz
code: MPIK-Corsika
10 rooms (90 €/night, big breakfast includ.)
Bismarckstr. 19, 69115 Heidelberg
https://www.panorama-heidelberg.de/
info@panorama-hd.de (+code)
5 rooms (79 €/night, fast internet but no breakfast, kitchenet, bakeries in the near vicinity)
Bergheimer Str. 24, 69115 Heidelberg
http://www.guesthouse-hd.de/
vt@guesthouse-hd.de (+code)
In case of questions, please ask ruth.crespo@mpi-hd.mpg.de
