Does anyone know where I can find a mistress in the Netherlands

I find candidates every trip.
How much do you plan to spend, and what kind of services are you looking for?

Weasel

I don´t have any idea how much COSTs. I´m looking for a mistress who make things with my body and order me to do things with her.

Domination!
This is easy to find. The hard part is finding someone that matches your speed.
If you look in the windows, you will see some girls have a LOT of gear on display on the walls.
This is a good way to start, although some of the girls just use it for decoration, and have no idea how to use it.
Most of the girls with big toy collections are in the Singel.
There are a few famous Dominants. Mistress Irene comes to mind.
Maxx was very fond of this sort of thing, and had a frightening collection of gear. She isn't in the windows any more, but I think she still does escorts.
I know a few escorts that really enjoy this, but they forbid me from writing about them here (and are prepared to punish me severly if I disobey). Plan to spend 600-1000 Euros for three hours of their attention. PM me if you want more.
Many of the window girls will tie and tease you, if you want to start there. If you are looking for more of the collar/leash/mask/control sort of thing, you will probably need an escort.
Society Sevice has several girls that advertise as BDSM dominant.
And then there is Kiera, who has a special skill. She likes to tie men up, then take all the money out of their pockets. If this is your thing, you are kinkier than I am, my friend!

Weasel

If you decide to go with Society Service (which I recommend) you would be best served to discuss with Marike (the booking agent and owner) regarding your specific desires. As awkward as that may seem at first, she is completely professional about it. There are many girls on her site that advertise BDSM Dom. However, their skills, experience, and kit vary widely. If you work with Marike in advance you can get a mistress who will match your wishes and will also be prepared to give you what you want.

Or you can shop around the RLD looking at the kit that girls have on display and discuss with them upfront. After a few tries (and € investment) you can probably find a mistress who is right for you.