Looking for a 2 to 3 room flat to rent in Frankfurt

Who could help me to find a 2 to 3 room flat in Frankfurt? It shall be clean, have a furnished kitchen; preferably no carpet floor; closed to public transportation; I have no pets and I am a non smoker. Max. rent up to EUR 750. No Makler Courtage.

I am already living and working in Frankfurt (fluent German speaker). Thank you : Protected content