There is no doubt that canva is probably the most amazing tool in this entrepreneurial space. It not only helps you with creating multiple different types of content (static pins, video pins, story pins, etc), but it can help you with other parts of your business too.
It is a very easy to use platform, so if you are just starting out – I would suggest starting with canva. If you have a design background you can go the extra step and design original pins in adobe (but you can also do that in canva by starting with a blank canvas.
For every Pinterest client I have, I design about 3-4 different templates to use so I can keep their Pinterest profiles on brand and to spread out their content with all different eye catching imagery.