[writesoftware]

You don't mention which language you're interested in, but if you use Go, check out my guide on Go Data Structures https://flaviocopes.com/golang-data-structures/

Even if you're not into Go at all, I think the language is nice to beginners and the examples can be easily read.

I hope you'll find it useful, it focuses more on the implementation than on the theory but it could be reference material along with more in-depth books.