I've used Kyle Fleischfresser's Giallo list to rank the top 150 films according to their Letterboxd ratings.
13th July 2016 - List reviewed and reranked
1st August 2017 - List reviewed and reranked
25th April 2018 - Some films deleted because they aren't Gialli and everything reranked.
25th March 2019 - List reranked. Over the course of the last year the total number of views for the films on this list has risen nearly 50%!
14th January 2020 - List reranked (12 new entries)