
LEVOIT
Superior 6000S Smart Evaporative Humidifier
Smart, large capacity; cleaning and whole-home coverage polarized.

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I’ve got a Vicks evaporative cool mist rated for large rooms that I’m pretty happy with. It was about $45 at Target. One tankful lasts all night. The lower speed setting is a little noisy, but if you don’t mind a white noise kind of fan noise, I’d recommend it.
I don’t know if I would put a warm mist humidifier in a kid’s room, but I guess with a baby there is no risk of tipping it over? I use a filtered cool mist humidifier (Vicks has one). I rinse and flip the filter regularly and change the filter several times a winter since we don’t use distilled water. No coughing issues. Ultrasonic humidifiers were a no-go for us as well.
I have a Vicks cool mist humidifer in all of our bedrooms. I like it because it's compatible with the Vick's vapor pods that help when the kids are super stuffy in the winter with colds.
End of reviews

LEVOIT
Superior 6000S Smart Evaporative Humidifier
Smart, large capacity; cleaning and whole-home coverage polarized.

Vornado
Evap40 Evaporative Humidifier
Durable, low mold risk; frequent wick replacement is a pain.

LEVOIT
LV600S Smart Hybrid Ultrasonic Humidifier
Smart, quiet; hard water causes white dust; cleaning polarized.

Aprilaire
800 Whole-House Steam Humidifier
Superior whole-house steam; high installation and running costs.

Aprilaire
Model 600
Whole-home furnace integration; output tied to furnace run-time.