I wrote a review of a bleached denim button-down shirt from company Besnard earlier this year (wow, was that really only January? Ahh the halcyon days of carefree international travel and pandemic-free ignorance), and the company is now taking half off every shirt they sell.
My choice would be the button-down chambray (I wrote why I prefer chambray for shirts over denim in a post here). It’s got a killer button-down collar roll, a wide placket like God intended, and the construction and details are all top notch. For the sale price, they’re worth every penny.