After 3 days of research we found these to be the best options for international carry on spinner:

(update: I bought number 1 and I’m very happy with it)

1. Samsonite MightLight 19″ Carry on Spinner












Excellent size:
Body Dimensions: 19.0″ x 15.0″ x 8.25″
Overall Dimensions: 20.5″ x 16.0″ x 9.5″

5.75 lbs.

Has a front pocket for laptop and documents.

wet pack and side pocket

Good price $109 on amazon

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2. Travelpro Maxlite3 International Carry-On Spinner













Slightly big for some airlines:
External: 20″ tall (w/out wheels), 22″ tall (w/ wheels), 14″ wide, and 11″ deep, expanded,10″ non -expanded.

Lightweight: 5.9 lb

Good price $106 in amazon