FWIW, the brand I have reliably stuck with has been Asus ... as in motherboards.
The last few desktops I have bought for myself have been from Canada Computers; I research the individual components (case, CPU, mobo, video, SSD, etc), and the store will assemble and test together the result for what I consider a nominal fee. This path also makes it easy to buy a system without an OS pre-loaded, so I'm not wasting money on a Windows license I'll not be using; that can be difficult when looking at desktops bought retail (ie, BestBuy or Costco).