Enough space to live and nice roommates!

I’m searching (desperately…) for an apartment for the end of July/ beginning of August.
I describe myself as a really happy person, I always have a smile on my face and try to make the most out of my days. I usually try to have a nice relationship with my roommates and at the same time trying to respect their boundaries.
I moved to Germany from Italy to work last September and since then I’m quite happy about my decision to move here.
In my free time I like to improve my skills in the kitchen ( I always tidy up after), being out of the house to have a walk, have a coffe (or one or two drinks) with friends and improve day by day my German. My mother tongue is Italian.
I would like to have an apartment that will allowed me to reach the city center and the public transportation really easily.