Musical Futures 

Musical Futures is a movement to reshape music education driven by teachers for teachers. Their website has a rich collection of guides and resources that you can download for free - https://www.musicalfutures.org/resources 

Technology in Music 

Technology in Music Education (TiME) have a growing amount of online resources on their website - https://techmusiced.org.uk/timeresources.php

MusicFirst 

MusicFirst are offering free temporary licenses for some of their software including Soundtrap and Noteflight , as well as low cost upgrades/extensions to the renowned product Focus on Sound (used in around 800 secondary schools).  See their website for more information - https://www.musicfirst.co.uk/