Pebble trays don't actually do much either (don't worry, common misconception) but this humidifier is small, cheap, and works pretty well. It's the one i got and it runs for a long time, usually 6-8hrs on the consistent spray setting and 12-14 on intermittent.
From what I've seen on other posts here, yes. Your best bet is a small humidifier (this is the one i have), some websites or people may say a pebble tray or to mist the leaves to increase humidity but neither of those really works well enough to make much difference.
I’ve been using this MOTIV - Small Cool Mist Humidifier for a couple months now. It needs to be plugged in and works well with my small plants. Sometimes I just bring my plants into the shower and let them get a good steam while I shower.
I hope that helps. If you don't have one already, I put a link below of a small desk humidifier I used for my first calathea and they were very happy next to it.
https://www.amazon.com/dp/B07Z64CSTJ/ref=cm_sw_r_cp_apap_vvNKG3YyUzcto
Portable Mini Humidifier, 500ml Small Cool Mist Humidifier, USB Personal Desktop Humidifier for Baby Bedroom Travel Office Home, Auto Shut-Off, 2 Mist Modes, Super Quiet, White
pros about this humidifier is that its cheap and you can see it working
cons: you gotta refill it every few hours and its charged with a usb cable and doesnt come with a power cube
From what I've heard, misting doesn't really help with humidity. Here is a small humidifier i got for my plants that i really like. Best of luck!
Portable Mini Humidifier, 500ml... https://www.amazon.com/dp/B07Z64CSTJ?ref=ppx_pop_mob_ap_share
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https://smile.amazon.com/Portable-Humidifier-Personal-Desktop-Shut-Off/dp/B07Z64CSTJ/ref=sr_1_17_sspa?dchild=1&keywords=humidifier&qid=1601487379&sr=8-17-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEyV1RNVEpYQlREOVFKJmVuY3J5cHRlZElkPUEwMzQzNDY0WkZGMkdMOTlFQTNRJmVuY3J5cHRlZEFkSWQ9QTAwOTc2ODFKNk5TUzkyUU1XNDImd2lkZ2V0TmFtZT1zcF9tdGYmYWN0aW9uPWNsaWNrUmVkaXJlY3QmZG9Ob3RMb2dDbGljaz10cnVl
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hey thank you! I got it off of Amazon searching for mini humidifiers. Here's the link: https://www.amazon.com/gp/product/B07Z64CSTJ/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1