Buffwatch

Description
Buffwatch creates a small window that lists players in your party/raid. Next to each name you have the ability to list buffs and debuffs, including an option to only show those you can recast/dispel. Within this window rebuffing a player is as simple as clicking on the buff icon that has expired (they turn red when this happens), making it easy to glance over to the Buffwatch window to see if anyone needs a little rebuff loving. The addon itself is highly customizable and has a simple interface that is a mobile frame. The only thing users may find lacking is that there is no buff duration listed -- the buff is either on or expired. Still, from my experience this addon was invaluable while healbotting in raids, and I highly recommend it.