Super FM was a special event station that operated with Easter weekend 2019 on 675 kHz from the city of Wassenaar in The Netherlands. The power was 100 watts! 
Radio Vrij Zwolle operates from the city Zwolle in the Netherlands at 1485 kHz and was surprisingly received on 1485 kHz on Tuesday 23 April 2019 at +- 18.00 UTC!
An up-to-date overview of all low-power transmitters in the Netherlands, with the transmission power used, can be found on this website: https://www.radio-tv-nederland.nl/am/am.html.
Hugo's DX Hoekje 