The phrase "a sort of climax" is correct and usable in written English.
It can be used to describe a point of highest tension or intensity in a narrative or situation, often in a metaphorical sense.
Example: "The story builds up to a sort of climax, where the protagonist finally confronts their greatest fear."
Alternatives: "a kind of peak" or "a type of culmination."
This drive reached a sort of climax in the already notorious Wall Street Journal editorial of Sept. 19, which added appointments of conservative judges to the list of goodies the administration should grab while the grabbing is good.
The comedy of the hopeless and of the inert reaches a sort of climax in the scene in Rum Punch when the three savage "jackboys", Zulu, Snow and Sweatman, find a rocket launcher in the back of their van to fire at the police trying to arrest them.
Wexler won his Oscar in colour for Ashby's Bound for Glory, his decades of innovative hand-held work coming to a sort of climax here, as the smoothness of kinetic forward motion he had always sought was suddenly his for the asking.
Sitting in her fine house by the Tigris, Mrs Salma Mishlawi, an Iraqi gentlewoman of the old school, the first woman in her family to go unveiled, the first to attend university in England, said: "The 1980s were a sort of climax for us.
This dance was a sort of climax for the evening, with the dancers marching and shouting in unison like some sort of maniacal boot camp squadron.
But, as George Packer wrote in a piece on Holbrooke for The New Yorker last year, it was only part of a long, complicated, and fascinating career, which was reaching a sort of culmination, if not a climax, in his diplomacy in Afghanistan.
He plays the first hour like a two-verses-only game of Name That Tune, inviting us to "see if you know this one", hunting out applause of recognition and failing to build any sort of climax.
People and events don't feel as though they're moving towards any sort of climax.
As a sort of natural climax to the swelling phone trend, Samsung went all out with the first true "phablet," and despite groans of protest the phone not only sold well but became a staple of the Galaxy series.
The evening closed with Dam and Snoop singing along above instrumental tracks from "7 Days of Funk". After so much bass and groove, so much celebration, it came as a relief to finally hit some sort of climax.
