My only recommendation is that you should spend a little more money on specifically an evaporative humidifier. They’re a bit louder (I think I’ve got a Vornado EV100 or something?) but the cheap humidifiers on Amazon will cover everything in the room in very fine white powder after a few weeks/months, which gets super annoying. The evaporative-type humidifiers don’t do that. Not sure about smart-plug compatibility, though.

I can't recommend a specific one because where i live we have the opposite problem; but in general the type of humidifier is the most important when it comes to resilience and maintenance, best info source i can point to is ths video from technology connections where he talks about different types; all of the ones he talks about in the video (aside from the big one) are fairly simplistic in construction, so they'll start as soon as power is applied. Also be mindful about the size of the room, since a small one may not be fast enough.

I am living in a dry region (now it's like 60% bc it's winter, but in summer reaches almost 0%humidity). I was like you and also got humidifiers before, but my recommendation is that you forget about it and just let nature do it's thing and plants adapt to your environment.

Obviously we cannot have ferns, but some plants like hoyas and such, you may be surprised that they adapt at the end and even thrive. At the end you do as you think best, but overcaring for plants that may be sick or cannot live in your climate is too big of a challenge long-term, take that into account

Is this a winter or summer issue for you? Do you have central HVAC/forced air?