These are links to various useful things online for Enstars players. I just like them and wanted to share.

English Ensemble Stars Wiki: Self-explanatory.
Japanese Wiki: A wiki in the Japanese language.
r/ensemblestars: The Enstars subreddit, for all game versions.
MakoTools: A new website being built, containing various useful tooks for English server players.
ENstars Banner Calendar: A list of upcoming banners and events on the English server.
Music Teambuilding and Scoring Guide: A guide for building teams in Music.
Event Diamond Calculator: Helps to calculate how many diamonds you will need for Music events.