Microcontroller selection for entry-level consumer graphical application

[Yuza]

Hi support Team,

I  am looking for support in selecting an entry-level microcontroller for a consumer graphical application.

Requirements:

Display: small display up to 320 × 240
Memory: around 1 MB Flash and 256 KB RAM
Power: preferably mainstream or low-power
Peripherals:
3 SPI instances
2 I2C instances
2 ADC channels
The peripherals will be used with dedicated sensors

The application is a consumer product with a small graphical interface and dedicated sensor connections. I am looking for a cost-effective microcontroller that can support the display, peripheral interfaces, and basic graphics requirements in an entry-level solution.

Questions:

Could you recommend suitable microcontroller families or specific part numbers that best match these requirements? 

Is there an existing example or reference project that could be used as a starting point for development? 

Best Regards,

Nuyuan