Ah, Young Grasshopper/Padwan...

As with so many other things in this endeavor/hobby, there are no 'one-size-fits-all' answers.
Bottom line, it's all about hydration & humidity, and there are different ways of accomplishing those. What works for someone in one climate/geography/enclosure type, etc. won't work for another with different climate/geography/enclosure type, etc. Every situation is different.
I'm in the northeast/Great Lakes, with a hybrid enclosure. I'm able to achieve & maintain all RH targets with just a MK mister—no fogger, no dripper. For drinking water, I mist an additional time at noon.
Others in other places may need all three, or some combination.
Were I to prioritize (and others' priorities may differ as well...) I would rank and try, in order to achieve my targets:
- Mister (MK has won me over—we just got a second one for the tortoise)
- Fogger (if necessary)
- Dripper (probably least mandatory/most optional)
If all can be done with a mister, great—anything further is optional. If not, add the fogger, and if necessary (least likey with the other two) a dripper.
Some like a dripper for aesthetics, which is fine, but avoid fountains—they're bacteriological incubators/Doomsday machines.
https://www.chameleonforums.com/search/1635361/?q=fountain&c[title_only]=1&o=relevance
https://chameleonacademy.com/basics-hydration-for-chameleons/
According to the archives, you should be good down into the 50s.
https://www.google.com/search?q=low...HeVlBR4QrQIoBHoECB8QBQ&biw=1024&bih=625&dpr=1