I dunno about specific labels, though Calvin Klein does show up a lot in my wardrobe I suppose. I tend to stick to thrift stores for my stuff. But anything slim-fit or v-necked is a good bet. Skinny jeans, fitted button-ups, that kind of thing. Asian labels also produce much more feminine stuff for men than European or American ones, if you can fit the clothes.
The trick is that it takes patience. I tend to try on ten or more things for each one I buy. If you are buying figure-hugging stuff, it really needs to fit properly or it just ends up looking awkward.
My work-appropriate staple is a grey, blue or white slim-fit men's button-up and dark boot-cut women's jeans or black slacks (my hips do not get along with men's pants), a men's black/silver necklace, and black boots. And my asymmetrical haircut finishes the look. A touch of makeup if I'm being super fancy. I do prefer the dressier kind of look. In the summer I'll throw on a tank-top and skinny jeans sometimes, but then I tend to draw more attention than I like.