This guide is work in progress. You can also see the Genshin interactive map on mihoyo official site.
Puzzles, Secrets, and Hidden Chests in Liyue
Top Mining Spots
Hu Tao
Mondstadt Region Puzzles, Secrets, and Hidden Chests
Primordial Jade Regalia
Kazuha
How to make & link your MiHoYo account