Inviting internal guests to meetings

I want to create a community of managers. They will have monthly meetings that everyone will be invited to. In addition there may sometimes be guest speakers from within the company but who are not members of the Team (and I don't want to be).

How would I create invites that automatically include all team members, and add 'temporary internal guests' just for one meeting, without giving them access to everything?

I also don't want everyone to be emailed every time someone is added or removed from the invite.

I previously tried creating a Calendar within the team and sending the invites from that but it didn't work. Do I need to create a 'meetings' channel and use that? How about adding guests?

Thanks