On the one hand it's rather straightforward because much of the state of the art in crypto research is in eprint or open access. On the other hand there isn't really a sane "landscape document" that elucidates all of this information in one place because it's so scattered and hard to organize.
Specifically: imagine a straightforward document with a handy table of contents that e.g. explains what a given cryptographic primitive is at a high level and what the current state of the art in attacking it is, like so: https://en.wikipedia.org/wiki/SHA-2#Cryptanalysis_and_valida...
I don't know how useful this would be to someone not working on cryptography research because it's heavily descriptive and academic (unlike, say, Cryptographic Right Answers, which is a good prescriptive document for developers).
https://gist.github.com/tqbf/be58d2d39690c3b366ad#ptacek-Cry...
http://valerieaurora.org/hash.html
but for constructions, and with more citations?
While we're at it, a similar resource for benchmarking instead of cryptanalysis exists here: https://bench.cr.yp.to/. This is maintained by Daniel Bernstein, who is probably the single most qualified person to lead that sort of work.