In its website at https://travel.usnews.com, US News just lists Nha Trang and Phu Quoc in Vietnam as 2 great seaside destinations in “The 50 most beautiful white sand beaches in the world".
Nha Trang Beach
“Vietnam's Nha Trang offers numerous beaches spread throughout the city. Its Tran Phu Beach sits along a stretch of high-rise hotels with plenty of dining and nightlife nearby. Travelers visiting the city set up on this beach for its clear and calm waters and beautiful white sand.”
Long Beach, Phu Quoc
“The Long Beach in Phu Quoc Island is renowned for its beaches and stunning scenery. Long Beach in particular features strikingly soft white sand and crystal-clear waters. This stretch of sand is also home to numerous resorts, most of which feature huge pools and rooms geared toward families.”