If your grandmother is/was using a specific reader and likes that model, it might be good to mention it as it will give us something to compare it to. Also we might be able to help you find one just like it.
That said, I think PocketBook still makes the Basic, which doesn't have a touch screen. I don't know much about it beyond that.
The PocketBook Basic 3 is sold by Amazon in Canada, but it looks REALLY expensive for what it is.
https://www.amazon.ca/PocketBook-PB6...cketbook+basic