My suggestion is to read the feature lists on the various low-end devices with front lights and pick the one that seems right for you. The truth is the major brands are all excellent. Asking what ereader to buy is a bit like asking what car to buy. You don't get answers. You get personal preferences.
While you're reading on the various features you might post questions about any of them you don't understand. You'll still get preferences and prejudices but reading those will help you understand the nature of the features.
Actually I'm just trying to sound open minded. Get a Kindle. It's the only decent ereader. Or get a Kobo. It's the only decent ereader. Or get a Nook. It's the only decent ereader, at least until B&N goes belly up.
Barry