To invite users to view your YouTube Live you can generate a shareable link:
Open YouTube Studio:
Open the Videos section:
Open the Live Videos tab:
Click the "Upcoming" video 3-dots icon:
Select "Get Shareable Link:
You now have a link that can be shared with your viewer ahead of the broadcast.
IMPORTANT: don't delete the "Upcoming" Live video as it'll disconnect your YouTube account from Loola. If you can't see the "Upcoming" Live video, following the instructions in this article: