Spain has the Beckham law - https://en.wikipedia.org/wiki/Beckham_law - though it might not survive much longer.
Sweden has a similar policy but you need to earn over ~120,000 euros: https://www.forskarskattenamnden.se/forutsattningarforskatte...
I was really close to moving to NL to take advantage of that (vs. the insane taxes in Sweden) but unfortunately at the time I got the offer they were still in full lockdown restrictions.