When you open discord you find several online, offline, and invisible.

Member list:

Muzan Kokushibo Doma Akaza Sekido Karaku Aizetsu Urogi Zohakuten Gyokko Gyutaro Daki Nakime Enmu Rui Kagaya Ubuyashiki Amane Ubuyashiki Giyu Tomioka Mitsuri Kanroji Obanai Iguro Sanemi Shinazugawa Gyomei Himejima Kanae Kocho Kyojuro Rengoku Shinobu Kocho Muichiro Tokito Tengen Uzui Tanjiro Kamado Nezuko Kamado Zenitsu Agatsuma Inosuke Hashibira Genya Shinazugawa Kanao Tsuyuri Hotaru Haganezuka Sabito Hinatsuru Makio Suma