Kortrijk has some very fine places to stay! Tourism Kortrijk made a few nice overviews, so why not just link them:
Of course, you can also ask Google, Booking.com or whatever your favorite hotel booking service is. If you want to minize walking distance, try selecting a place inside the inner ring of the city, or near the southern edge of it.
Unfortunately, the Convention was cancelled due to the effect of the Covid-19 crisis. This page is staying up for now in case you need to figure out which hotel you booked. We have not sold any rooms ourselves, so please contact your hotels directly.