The other one to mention is Jose Torres excellent TriAtlas project
https://www.uv.es/jrtorres/index.html
To quote:
The first one (A-Set) consists of 25 A4 charts showing stars up to 9 magnitude, with 70º maps in portrait format.
The second one (B-Set) includes 107 charts up to 11 magnitude, with 30º charts.
Finally, the third section (C-Set) includes 571 charts (12º each) up to 12.6 magnitude, more powerful than the Millennium Atlas, listing for instance all known planetary nebulae and open clusters, galaxies up to 15.5 magnitude, double stars up to 12.5 magnitude, etc.
Also an iPad version available.