https://www.pewresearch.org/global/2015/06/23/1-americas-global-image/
America’s image is mostly positive among the Asian nations polled. Particularly large majorities see the U.S. favorably in the Philippines (92%), South Korea (84%) and Vietnam (77%).
It’s from 2015 but more recent polls have found similar data IIRC
79% of people polled in Vietnam chose the US in the “Preferred alignment choice in U.S.-China rivalry” which is a different metric obviously but still points towards the same idea
Edit: According to Luna Oi, Pew Research Center is a neoliberal think tank that cannot be trusted on anything about Vietnam
I’d go with Luna on the matter. Neolibs have no shame in extrapolating the most insane shit from not remotely related questions.