Where is a good place to buy solid slim fitting dress shirts?????

I’m quite skinny and everytime I buy buttonup shirts they are baggy esp. in the arms, so any help is appreciated.

Brooks Brothers’ No-Iron Fitted White Shirt

($89 at Brooks Brothers locations)

Nordstrom carries a brand called FOXCROFT

Chamelleon By CJN Sleevaa – Demonstration – How To Wear Sleevaa