You mention Madeon which I think is more like "electro pop" or "nu disco" (I don't like that term but hey) so maybe you'll like the following if you don't know them...
Agar Agar:
https://youtu.be/wrCE6DjE6g8
or Kid Francescoli:
https://www.youtube.com/watch?v=fdixQDPA2h0
or, more on the chill side, L'Imperatrice...
"Erreur 404": https://youtu.be/eyk-Sliy8RU
and say "Parfum Theremine": https://www.youtube.com/watch?v=5Ksp63RJuaU