If you want to take the trouble to sort people into lists, I reccomend https://github.com/KrauseFx/twitter-unfollow It unfollows everybody you're currently following but moves them onto a list called "Old Follows". You can then move them onto specific lists.

The nice thing is that you can look at a list and it will be in chronological order. No "Top view".

I also paid for Tweetbot because it has one killer feature: you can filter retweets. That cuts down on the echo chamber.