Ryobi has a whole range of string trimmers and edgers, both gas- and battery-powered. Which one is right for you may depend on how and where you want to use it.
You can edge with your EGO trimmer by flipping it vertically, guiding the spinning string along the border, and taking slow, ...
Here is a list of discontinued products that, if Ryobi brought them back, would be very useful to have. You may know Ryobi ...