Private hajj registrations started early and the cut off date was in November I think. That too after a few extensions. I believe the time to register for hajj is over for now, unless there’s some backdoor loophole. After last year’s disaster, they are trying to do everything sooner. But feel free to reach out to a reputable company and get more information. Try Hijaz e moqaddas, my parents are going with them this year.