Goa is anything but relaxing, I'd say.
A lot of my favourite electronic listening music comes from Germany, if you want suggestions from your country.
Regarding dub, here are some suggestions regarding the originators in the 70s.
Yabby U - King Tubby's Prophecy of Dub
Burning Spear - Garvey's Ghost
King Tubby And Friends - Dub Gone Crazy (The Evolution Of Dub At King Tubby's 1975-1979)
Scientist - Dub In The Roots Tradition
At the other end of the scale, the most minimal dub stuff that's happening now is Rhythm & Sound, operating out of Berlin. They used to release housey techno but have gone increasingly into dub territory. Try 'Rhythm & Sound with the Artists' or 'Versions' (that's the isntrumental version). It's absolutely incredible sound design, but a lot of people find it very boring. They're wrong.