Twente (HF only) —> http://websdr.ewi.utwente.nl:8901/
Gerbrandy Tower / Ijsselstein —> http://websdr.pi1utr.ampr.org:8901/
Dokkum (3.5m) —> https://vosrx.nl/#freq=90000000,mod=wfm,sql=-150
GrooteGast (3.5m) —> https://variant.vosrx.nl/#freq=90000000,mod=wfm,sql=-150
Almere (3.5/3.0/2.0) —> http://websdr.fm-tuner.nl/#freq=93000000,mod=wfm,secondary_mod=rds,sql=-150
Den Haag (1.8/3.5/2.0/0.70) —> https://websdr.repeatersdelft.nl/#freq=85900267,mod=wfm,sql=-150
Heemskerk (3.5) —> http://sdr.atvin.nl:8073/#freq=85900000,mod=wfm,sql=-150
Links about sdr websites are welcome. Or any other stuff fine too