LCD modules with I2C or SPI interface
Price point is something you'll be hard-pressed to negotiate without serious volume.  If the price is not something that can slide, you're likely to be stuck buying raw panels and adding the controller ICs / communication ICs to a custom designed board.

If you can let the price slide, there are some nice pre-made modules you could look into.  Adafruit has "backpacks" that are designed to solder to the back of the common LCD displays and handle the parallel control logic while giving you an I2C/SPI interface.  Those are here.

They also have fully-packaged LCD modules with the backpack already attached.  Here is an example of one with a basic 16x2 LCD.