What are some brands/scents that are hard to find decants for, or that you’re dying to sample?

Wanting to start decanting. I want to carry stuff that other people don’t have/stuff that’s harder to come by, as well as hard to find and new releases. The brands at the top of my consideration right now are Pernoire, Jacques Faith, Guerlain (many of their scents are extremely hard to find decants for), Precious Liquid, etc.