They’re all in August, so it’s a bit of a wait:

Shiori Novella
PDT : Friday, August 2nd, 8:00 PM –
JST : Saturday, August 3rd, 12:00 PM –
YouTube : https://www.youtube.com/@ShioriNovella
Hashtag : #Shiorin3D

Koseki Bijou
PDT : Saturday, August 3rd, 8:00 PM –
JST : Sunday, August 4th, 12:00 PM –
YouTube Channel : https://www.youtube.com/@KosekiBijou
Hashtag : #Biboo3D

Nerissa Ravencroft
PDT : Friday, August 9th, 8:00 PM –
JST : Saturday, August 10th, 12:00 PM –
YouTube Channel : https://www.youtube.com/@NerissaRavencroft
Hashtag : #3DemonDebut

Fuwawa Abyssgard and Mococo Abyssgard
PDT : Saturday, August 10th, 8:00 PM –
JST : Sunday, August 11th, 12:00 PM –
YouTube Channel : https://www.youtube.com/@FUWAMOCOch
Hashtag : #FWMC3D

hololive English -Adventl- 3D Collaboration Stream
PDT : Saturday August 17th, 8:00 PM –
JST : Sunday, August 18th, 12:00 PM –
YouTube Channel : https://www.youtube.com/@hololiveEnglish
Hashtag : #Advent3D