Hi and welcome to the forum!
This is the official forum chameleon care-sheet:
https://www.chameleonforums.com/care/chameleons/
It will tell you EVERYTHING you need to know to start off. That will give you an excellent idea of their care and what goes into it, and any questions you still have we're happy to answer. There's also a section about individual species profiles, so you can look at info specific to a veiled, or a panther, etc.
I think all of this will help you decide which is the best fit for you.
This is also a blog that outlines all the supplies you will need and the general cost, which will give you an estimate of what you might be looking at spending up-front to set up a chameleon:
Average Cost of Owning a Chameleon
Any of the site sponsors located in Canada are very trust-worthy. We don't allow anyone to become a sponsor unless they have a great reputation.
And if you're a busy mom I definitely recommend automizing everything as much as possible, as it will give you less work. So I recommend that you put as much stuff on a timer as you can, like the lights, the misting system (if you get one, which I recommend but is optional, it just makes your life easier), etc.
And don't be scared off by the dubia roaches! These do not fly or climb, live and breed very happily in a large plastic tote, and don't smell or die like crickets do. They make excellent, very cost-effective food to raise so especially in Canada where it might be hard parts of the year to order in crickets, it might be a good idea to have something at home you can pull from.