Here are some popular options:
Amazon:
* Kindle Paperwhite: A great all-around e-reader with a warm light option.
* Kindle Oasis: High-end, with a larger screen and more adjustable light options.
* Kindle Scribe: A new model with a larger screen, a stylus, and note-taking capabilities.
Kobo:
* Kobo Libra 2: A strong competitor to the Kindle Paperwhite, with a warm light option and waterproof design.
* Kobo Sage: The top-of-the-line Kobo, with a large screen, a stylus, and adjustable light options.
Other brands:
* PocketBook InkPad Lite: A large-screen option with adjustable warm light.
* Onyx Boox Nova Air 2: A tablet-like e-reader with a larger screen and more advanced features.
Things to consider:
* Screen size: Choose a screen size that is comfortable for you.
* Light options: Some e-readers offer warm light options that are easier on the eyes at night.
* Battery life: Look for a model with long battery life.
* Price: E-readers range in price, so set a budget before you shop.
It's a good idea to read reviews and compare features before making a purchase.