If you're looking for a a full feature set without the monthly data plan, the Samsung S390G is a good place to start.
If you're trying to avoid a monthly data charge and are looking for an inexpensive monthly plan, TracFone's Samsung S390G is as good a place to start as any.
The QWERTY feature phone is a few steps up from a basic flip phone, but it won't incur that monthly data rate that piles up to many ducats spent on a smartphone.
In addition to the keyboard, which makes for easier texting, the S390G connects to Wi-Fi, a rather rare trait these days for a non-smartphone handset. In addition, you'll find e-mail, voice recognition, and a video player.
Other hardware features are as expected for a device of this type: a 2.4-inch non-touch screen, a 2-megapixel camera, and a QVGA screen resolution. Storage is a scant 117MB, but the phone takes up to 32GB in external storage, and the 1,000mAh battery promises to last for 6 hours talk time and 12.5 days on standby.
The GSM-capable S390G is available where TracFone sells.