In terms of scenery there’s definitely a sweet spot for alpine climbs.
Below 1500 metres altitude youre going to be climbing through mostly forested bits.
1500-2000 ish is proper lush green scenery , views of valleys below and all that
Above about 2200 you end up above the point where most stuff will grow so it’s all rocky and grey and desolated, but not in the good Sa calobra or Mont ventoux way.
There’s literally dozens of 10km ish long climbs with a view, some unknown ones are amazing but because they don’t end up on race routes for whatever reason, even the locals don’t know them. Always a good surprise when you find one.