When getting a mobile phone in the Netherlands, you need to decide if you want a contract (abonnementen) or a prepaid (pay as you go) option.
There are lots of providers in the Netherlands. This means many different options for mobile contracts or prepaid sims. If you want to be sure to have the best deal possible, you should compare the different providers. There can be a lot of difference in their offers and contracts, as well as their coverage quality.
expatica.com offers a detailed English guide with all essential information regarding Dutch mobile operators. It’s a good starting point to get some more detail.
telefoonabonnement.nl (8 providers compared) & telecomvergelijker.nl (11 providers compared) are two major comparison websites. They can help you search for offers that match your individual wishes. Unfortunately, both of them are only available in Dutch.