You can also look at traditional housing agencies and estate agents. A lot of students or expats find their apartment via agencies. These agencies are usually really engaged, able to offer many different options, as well as helpful staff and advice on anything regarding housing.
If you decide to go with an agency you must be careful with the costs. In recent years, there have been significant changes to Dutch law in regards to agency services and fees. A lot of tenants paid a fee to an agent that, according Dutch law, is not permitted in most cases. You can find more information about this in our page on agency fees or at the Housing Helpdesk website.