I’ll go to the point because my English is bad.
For a6000 as we know that it has crop censor, so:
1. 30mm f2.8 Sigma or 35mm f1.8 Sony is great. It’s equivalent to 45mm for Sigma and 52.5mm in full frame, mean that the pictures we get will same as we see through average eyes sight. We could also use this as portrait lens that will include the scene were we travel to.
2. Kit lens 16-50mm or 18-55mm for normal zoom.
3. kit lens 55-210mm for more zoom.
4. Optionally we could also bring macro lens with whatever focal lengths we have.