25 year old PhD student looking for accommodation in Heidelberg

Hi! My name is Cristina and I am 25 , I will be moving to Heidelberg pretty soon because I am starting a PhD at the DKFZ, I'm a biochemist. I'm Spanish (from Granada) :) I'm looking for a shared appartment to start my experience in Heidelberg! I have already shared apartments and it has always been a really great and enriching experience, I would love to have roommates with which I can hang out and spend my time. I'm really clean and organized, and like to participate in maintaining a good atmosphere for the apartment. I like to walk around, exercise and I'm always searching for the best place to eat, I also love to travel :)