This blog series on Vulkan is apparently pretty good (written by an id software engineer): https://www.fasterthan.life/blog/2017/7/11/i-am-graphics-and...

Talk by the same guy at GDC about porting Doom 3 to Vulkan and Stadia: https://stadia.dev/intl/en/blog/gdc-2019-session:first-light...