I use this model I found at Menards.

https://www.amazon.com/AIRCARE-831000-Space-Saver-Evaporative-Humidifier/dp/B00WAC9VKQ

Working great for years. Replacable wicking filters available. Don't forget to use the water additive (or vinegar).

https://www.amazon.com/BestAir-3BT-Humidifier-Bacteriostatic-Treatment/dp/B000CMHLMG

You want a 5+ gallon unit... small ones won't cut it, have to refill too often.