The best way to start is through research. There are many different platforms that you can use, such as Idealista and Imovirtual, where you can apply search filters and “save search.” When you have a “save search,” you will receive notifications on properties that meet your criteria. You can add more filters depending on if you would like to have a balcony, garden, etc. Alongside checking out renting listing sites and doing a “save search,” speaking with rent agents can help and will save you time, assisting you in finding more properties to rent that fit your criteria.
Many rent agents will speak English so that you won’t have any difficulties with an agent language barrier.