Recent Thai lakorns tend to show some pretty great high-street type fashion:
-Kor Kerd Mai...
-Lub luang Jai very visually pleasing
-Roy Leh Marnya : beautiful people well dressed, pretty decors.
But also:
-here to heart: it's not so much the FL, but the ML has some interesting fashion. But mostly it's a very stylish drama (settings, lighting choices... )
-Love in sadness: beautiful flowers, paintings, beautiful atmosphere/lighting. Some interesting fashion choices here and there.
-The spies who loved me