Reddit mentions of Three Views on the Millennium and Beyond (Counterpoints: Bible and Theology)

The Counterpoints series is good for seeing different perspective interact. You could check out Three Views on the Millennium and Beyond.

Here is a good short explanation from Third Millennium Ministries.

For a more in-depth treatment see either Berkhof or Three Views on the Millennium and Beyond

Please, please stay away from gotquestions.

Zondervan's Counterpoints series might be a good start: Three Views on the Millennium and Beyond

Also, the four main groups as I know them:

1. Historic Premillennialism
   
2. Dispensational Premillennialism
   
3. Amillennialism
   
4. Postmillennialism
   
   Within each group there are different views and camps.