Family (48) seeking house in Rotterdam

I have just recently relocated to The Netherlands from South Africa Durban where I was working. I am from Zimbabwe and happily married to Michelle since 2008 December 20th. We are blessed to have twin boys 11yrs and a last born 8years old. I am currently in a company rental in Rotterdam Central but I am looking to move with the plan to have my family join me soon. We have never been separated this long before as a family and I would be grateful to have a good comfortable place to start our new journey in the Netherlands. My life is family orientated and I am hoping to get a place that will make this possible. My boys love sport especially football, cricket and swimming. A 4 bedroom will ideally serve us well as a family.