Have you checked out Away?
In particular they make a Bigger Carry-on that is larger than the carry-on specs, but guaranteed to fit in the measuring box. A few great things about Away’s luggage:
- Lifetime warranty - Everyone love buy it for life products, right?
- Ejectable battery - Meets FAA, TSA and airline requirements and allows you to charge your electronics on the go
- Clever interior organization - Including multiple compartments and mesh enclosures
- Ultra-quiet Hinomoto Wheels
- Aesthetics - The bags just look amazing
If that sounds reasonable, check out this link for $20 off.