you are in the same situation as those who want to read large technical pdfs...
Basically you need a large format reader
Kindle DX, Sony Daily, ipad, iliad or alternatively a small netbook tablet (eg ASUS t91mt)
https://wiki.mobileread.com/wiki/E-bo...Larger_Devices
If you want colour you are limited to ipad, netbook, or one of the many cheap android devices around.
Alternatively you could look a large cellphone such as dell streak which handles news really quite well. Magazines are best through a rss reader.
Also you could look at a used nokia n770/800 with fbreader, pdf reader etc.