Here’s a recent reference grammar that has just been recommended in Voices, the flagship magazine of IATEFL – the International Association of English language teachers.
Quote: “Andrew Rossiter’s A Descriptive Grammar of English by Example should be included on your list of reference material. It reviews language as it is not only written but also spoken, and will cater for learners from upper-intermediate to advanced levels. The format presented is user-friendly, and unveils the mysteries behind how grammatical features are applied. For the invested student, this book is a huge step forward, and having the English language laid out in such a user-friendly approach is a welcome treat for … teachers and learners”.
From a review in Voices, issue 288 Sept-Oct 2022. Book details here https://linguapress.com/grammar/descriptive-grammar-english.htm