As you can see by the like Threads that have and are running in this specific forum, cages are a big topic.
I noted that you are in Canada and there is no question that Canada is a large country. Since you have some time and if you are near a larger city, I would check out the pet stores and large box pet stores so that you can see what is available and also be able to compare what other members will recommend. Some times it just better to be able to see a like cage than just a picture.
Cage size is based around the size of your parrot, its activity level, how much time in and out of the cage, available space in your home or apartment, etc, etc, etc...
Since, you are looking at a smaller parrots, it would be wise to limit the bar spacing at or less than 12 mm (1/2"). Larger cages are available with 12 mm spacing, but you have to ensure that spacing is available prior to ordering.
Commonly, the larger cages come standard with larger doors. I like larger doors because you quickly find out that you need to get into the cage to install toys, perches, food dishes, and most importantly; cleaning the cage. The smaller the cage door, the more likely you will need to disassemble it to clean and in some cases install anything in them.
Far too many parrot owners buy cages based on special or fancy shapes, expansion tops that open into large perching areas, etc... Nice, but commonly, they are a pain to clean and are part of the structure of the cage and cannot be removed. A simple square or rectangle cage with flat top and a simple perching area above, which can be install 'after' you have developed a relationship with your parrot is a better choice.
There are many sources for cages and their costs range is huge depending on what the cage is made from, the thickness of the bars, the sparing of the bars, etc... Since you are looking at a smaller parrot, a wrought iron (steel bar) cage with powder coated paint is a good basic cage.
I like Lani Kai Lodge bird cages. They have been around for a very long time and have a history of using a thicker powder coating, have large doors and come with a large list of standard items like upgraded feeding bowls and their locking access doors. They are found at or can be order though most pet stores and big box pet stores, or online. An example online source would be: Bird Cages 4 Less.
The number of cages and sources is huge! Therefore, I recommend that you take the time to look at cages first hand. So, you can place your hands on them. Run your fingers between the cage bars, look at what is being placed in and on the cages.
Remember to save money for buying nearly everything that will be going into (including perches) and on the cage. What you see displayed is rarely more than a 1/4 of what you will need for your parrot. A normal cage would have a minimum of 10 to 15 toys hung and/or placed on the cage. The number of perches range from as little as three to as many as six. Each perch would need to be a natural wood branch and range from 19 to 38 mm diameter. Sleeping perches want to be the larger diameters.
NOTE: You will want to select several hanging toys that can surround a sleeping perch (commonly located fairly high in the cage) to provide a safe and protected sleeping area for your parrot.
Make this a fun project! Check out pictures in different parts of the Parrot Forum, members will by chance include pictures of their parrot's cages. Also, search online for different examples.
After you have search a bit, come back with more questions.
