Like this one?
Pymeter Humidistat Temperature Humidity Controller Reptile Mushroom Greenhouse Thermostat Dual Controlled Outlets Heater Fridge Humidifier Dehumidifier https://www.amazon.com/dp/B08SXWSPZJ/ref=cm_sw_r_cp_api_glt_fabc_319AGPH9XYBJNRWTEB2R
It's an old fridge that still works. I plugged that and a humidifier into a temperature and humidity controller. https://www.amazon.com/dp/B08SXWSPZJ/ref=cm_sw_r_cp_apa_glc_fabc_5ECW5GSVH1409Q4D8PF1
That keeps the temp around 55f and humidity above 80. I also got a Bluetooth hygrometer/thermometer so I can see what temp/humidity without opening the fridge. Be warned though, Bluetooth doesn't work so well through a metal fridge door. Both were about $50.
The humidifier can't be a warm mist though.
Sounds solid.
You could get a controller to automate the humidifier and fan to keep them stable.
Pymeter Humidistat Temperature... https://www.amazon.com/dp/B08SXWSPZJ
Get a controller. You can set a range for the humidifier to run at.
Something like this: https://www.amazon.com/dp/B08SXWSPZJ/
Just use a programmable electric socket that measures heat and humidity. I'm a programmer. I right thought about using a raspberry pi but then I thought.. why make my life even more difficult.
Pymeter Humidistat Temperature Humidity Controller Reptile Mushroom Greenhouse Thermostat Dual Controlled Outlets Heater Fridge Humidifier Dehumidifier https://www.amazon.com/dp/B08SXWSPZJ/ref=cm_sw_r_apan_i_0DJP48D0818BJPVEFVQJ?_encoding=UTF8&psc=1
Also make sure you get a heater and humidifier that have a mechanical on/off switch. Not a digital one.
Like this: Amazon Basics 500-Watt Ceramic... https://www.amazon.com/dp/B074MX8VN5?ref=ppx_pop_mob_ap_share