Theres an (admittedly fine line) in italo disco/synth pop, where the sometimes out of tune vocals, naive lyrics and synth becomes... just NAFF:
Ken Lazlo, Blue System, Sabrina, Modern Talking after 1987, Scotch, Miko Mission etc, its a long curtain call...
However, there is a flip side to the genre, which reveals some real treasures, especially if you want to start from the original 'italo' disco phase of the late 70's.
Try out Azoto - any all of their stuff, but pay special attention to the album DISCO FIZZ (1979), its all there. Amazing synth flourishes, arpeggios a plenty, naive vocals sung in the highest key which , though sung in English - still need to be translated!
La Bionda - Made several albums, but the first two contain early italo - try the tracks Deserts From Mars, Sandstorm, One For You & Bandido
Vivien Vee - again first 3 albums have some real treasures hidden ...
Basically, if you stick to most work touched by Celso Valli, Claudio Simonetti & Mauro Malavasi up until 1984 your fairly safe.
Its a really interesting genre which has very long tentacles.... SAW productions wouldn't exist without its synth pop template. Yes. It has alot to answer for...!