Welcome aboard, Femke.

The people in the Electric forums would probably recommend something like a Slow Stick, a Slo-V, or one of the Aerobird Challenger or Commander types. There are plenty of options of that nature.

If there is a flying club nearby, there in the Netherlands, you would be well adivsed to check with the members. Often times, a member has a beginner plane that is no longer used, and can be had with reduced expense. A club is often a good source of advice, also.

Best wishes,
Dave Olson