The phrase "a sort of side" is correct and usable in written English.
It can be used to describe something that is not the main focus but is related or supplementary to the main topic.
Example: "The discussion took a sort of side turn when we started talking about our personal experiences."
Alternatives: "a kind of aspect" or "a type of angle".
Did they continue to engage in risky sex even after being off the drug, as a sort of side effect?
These include glute activation, the clam, one legged squats and a sort of side plank that causes my left glute to wake up with start.
They got in through a sort of side door that allows "specialists" to transfer from the regular army if they are needed.
I did think people might think it was a sort of side show novelty, or some completely ungraspable conceptual self-indulgence.
See all the wild strawberries!" A door led into a sort of side garage full of shelves: his root room, which was a more extensive version of the dining-room display table — Mason jars of flour, oil, vinegar, and sap, bowls of wild seeds, wine boxes of soil with sprouting potatoes and rutabagas.
Sometimes, wealthy Romans with huge villas would have a sort of side business, perhaps tapping a former slave to run it.
That's not such a big deal in itself but what makes this case study a little more interesting is that the company, also behind the much more fully blown app discovery service Appsfire, created Appstream as a sort-of side project while it grew more and more frustrated waiting for Apple to approve version 2.0 of its main app.
And when Olympics season arrived, there was a scramble to keep up with the latest tricks, particularly the double cork, a sort of side-winding double back flip.
A sort of side-thought inspired by Brad DeLong on the end of Malthusian economics and all that, plus what looks like deja vu all over again on the payoff or lack thereof to Big Data: whatever happened to New Growth Theory?
"A 4% Safe Withdrawal Rate doesn't take into account any sort of side income".
He had a side project that spun out Twitter that he and another guy named Jack Dorsey were working on as a sort of a side project, which was Twitter.
