Aha, I reckon you're thinking of progressive metal. There's plenty of modern progressive music/rock that doesn't veer into metal territory. Off the top of my head there's Arena, Frost*, Riverside, Threshold, Steven Wilson just for starters. Youtube can be a goldmine. (there's also loads of really good prog metal out there too, but it doesn't sound like that's your thing.)
Naturally, 'good' is in the ear of the beholder and all this is just IMO etc, I'm sure there will be plenty of people who go "Riverside? bleucch!".