I have been checking out providers both for virtual meetings and for a class I intend to teach.
Both Zoom and GoToMeeting function fairly well as "lecture" sites. I have had problems with getting moderator attention with the unmute function of both. The chat feature does not always work on my computer. For some reason gotomeeting minimizes the effectiveness of my microphone when I am trying to participate. I have had problems bringing up my camera with GoToMeeting as it seems to consume more of the available bandwidth than Zoom and I have to choose between video and speaking.

That said, Lynn Noel ran a good chanteysing on GoToMeeting this past Sunday. On her sing, there was no problem with joining in but, again, I had problems with the chat feature. Lynn was an alert moderator even by just enabling the microphone I was able to get recognized to participate.

On Monday, I participated in a meeting via Skype. Again, I had bandwidth issues. A good feature was that even with no chat feature, there is a separate unmute and a "raise your hand" feature. I liked this one best so far. In the next couple of days I intend to have a test run on Team, which is actually free.