Home Depot sells books on ohms law and wiring if your interested. Theres millions of options.
Ill see if I can find my other topics on this but some are EU so be careful.
Phillips I believe sells a light that can adapt to being on a smart switch(so the switch will relay its state and the light is still smart and programmable), you could re wire a fan to be controlled by relays…
Id attach the fan to a smart switch and then just try to leave it always on low speed if its pull chord.
a smart light should always be powered if you want complete control and some smart switches offer passthrough power and control via the network and assistant.