Did you get a house? Congratulations. Try to get furniture and equipment with the help of your connections. Next to that, inform yourself about if your new municipality can help you with a loan or donation to fill your new house with essentials.
How much this amount is, differs per municipality and differs from your personal situation: single, family, number of children and more. Through this link you can have an idea how much the amount is per municipality.
For more info: visit the social department at your municipality.
If you are assigned a social house (a house under 710 euro for which you can get also huurtoeslag - money back) you are not under the responsibility of COA anymore. In most cities, VWN will help you with the first steps to your house, and you can ask your (online) network to help you too.