Looking for a place for rent in Lisbon

Hi guys, I am Şafak. I am currently a student at Clsbe for a master's degree. I am currently looking for a place for rent in Lisbon after november. I like racing and going to solo travels to places I haven't gone yet. I am 24 years old. I am looking for rooms with single bed and a desk.
The budget is 400€/ month.
Have a nice day everyone,