HP Spectre 13 (v021nr) has quite good build quality in my opinion, coming from previously using only Macbook Pros.
It has 6th gen Intel i7, USB-C (one gen 1, two gen 2 which are also Thunderbolt 3), it was $1100, weighs 2.4 pounds. It's been the best Linux machine out of the gate I've had. Trackpad works, wireless works, the one glitch I'm running into right now starting with kernel 4.8 is suspend.
https://bugzilla.kernel.org/show_bug.cgi?id=185521
It has 6th gen Intel i7, USB-C (one gen 1, two gen 2 which are also Thunderbolt 3), it was $1100, weighs 2.4 pounds. It's been the best Linux machine out of the gate I've had. Trackpad works, wireless works, the one glitch I'm running into right now starting with kernel 4.8 is suspend. https://bugzilla.kernel.org/show_bug.cgi?id=185521