Three’s a crowd,
Four, or more, is either a shit-storm or a successful meeting. And you get to decide which.
Less than four people do not need much structure. It is more of a chat. Once you get to four or more, that's when time stretches.
Cut. Prepare. Run. Repeat.
Cut the number of attendees. Everyone does not need a say. Be bold. Someone will be upset whatever decision is made.
Prepare the agenda and make sure everyone else has prepared.
Run the meeting to time. Be mindful that this is not the work. The meeting is organising the work. Get back to work as soon as possible.
Repeat. As infrequently as possible.