Do you use Canva? A lot of designers feel threatened by Canva as technically anybody can design anything on it without the need to buy (and learn to use) expensive software.
In case you don't know what I'm talking about, Canva is a simplified graphic-design tool website that uses a drag-and-drop format and provides access to photographs, vector images, graphics, and fonts. The tools can be used for both web and print media design and graphics.
I personally think Canva is a great tool but as with everything in life there are pros and cons. Yes, it's cheap and easy to use, but you still have to be able to master the technical side of it and still have at least some understanding of graphic design principles. And if you use the ready made templates as they are, your designs will look the same as everybody else!
A good compromise would be to use Canva for simple things and hire a designer for more complex designs. Alternatively, you could ask a designer to set up a set of templates for you in your account, so that you can easily update them as and when needed.
You can even set up a brand kit so that you have all your logos, colours and fonts in one place to ensure all your designs are on brand. And once your design is ready you can easily export it for printing or for digital use. If you're unsure where to start, you can do some free online courses or ask somebody to show you around.