As a 20+ years brand agency owner, the graphic design skills could be lucrative.
We have so many clients making an utter hash of using canva, it's bloody awful from a typography perspective and so easy to spot a client that's just "chucked it in canva"
We develop a large scale brand and then they systematically destroy it by using the wrong fonts, crappy layouts etc, with all the will in the world even the large brands can't resist "trying" to design. .
But there is a solution if you can master adobe express, that would be brilliant. As we can export from indesign, it's so much better than canva and
It means you can tie up with agencies and then help the clients develop the on brand assets for socials.
Your offering to agencies is doing the Adobe express work. And your offering to clients is to do their social in professional software.
Just my thoughts and there is currently a gap, my freelancers want to charge £40+ a hour and it's more of a £20-25ph job.