The phrase "a sort of parallel" is correct and usable in written English.
It can be used when drawing a comparison or similarity between two concepts, ideas, or situations.
Example: "The two theories present a sort of parallel in their approach to understanding human behavior."
Alternatives: "a kind of similarity" or "a type of comparison".
The reader is on a sort of parallel journey, but it is not a mystery story.
But I'm across in a sort of parallel corridor from the real events".
Although different in intention, all shared an interest in the creation of a sort of parallel world, where the place of the spectator was paramount.
The men in the Brand see themselves as part of another world, a sort of parallel society, where violence is justifiable.
Today, though, in this time of psychological and actual fragility induced by President Donald Trump, Americans have begun framing Canada as a sort of parallel paradise.
From the Rangers' point of view, the Knicks operate in a sort of parallel universe, separated by something deeper than distance.
As a sort of mandarin parallel to punk, the movement disdained the idealism of previous avant-gardes.
Of these, I think the most interesting involves setting up teams of MPs to scrutinise proposed EU laws and regulations at a much earlier stage, in a sort of system of parallel European select committees.
There is, however, a strange sort of parallel between Pattinson's own life in the celebrity bubble and Packer's limo-bound existence.
This approach leads to a sort of "multi-model" set of parallel automata representing a system in nominal and different faulty conditions, hence statecharts have been effectively used for representation.
The second-place spot — in which representations of rival browsers acted flashy and stupid (Internet Explorer kept chanting, "Wheee!" like an idiot) while Firefox quietly did its job — came out on top in a sort of people's-choice parallel contest, getting an average five-star rating from 29,000 voters.
