MAX6675 connected to smart plug via SPI

Does anyone know of a smart plug that has exposed pins that I can use for SPI? I thought rather than building an ESP board with separate PSU, enclosure etc. I thought it would be easier to just use an existing smart plug if possible, flash with esphome (or tasmota), and wire in the thermo module.

I’m using it to monitor the temp of my drier vent. Wondered if anyone knew off hand of an easily modifiable ESP8266 based plug (USA).

Thanks in advance.