From my experience opening night always has early entry, and while wait times may seem deceptively short at first, don't let that fool you, a seemingly slow night can easily become massively packed by the time non-early entry guests make their way in.
Seconding Freak's comment, since even besides the fact its a headliner, SS29 almost always demands the longest wait times, and gets packed the fastest.
Obviously since we dont know the exact early entry order, its harder to say, but personally, modifying the order that consistently got me into every house last year (assuming you want to stay till close to closing)
First do Weeknd, then Monsters, then Klowns, make your way up to the pseudo backlot section behind Harry potter as they'll likely either be about to open, or just did, do either Scarecrow or Halloween depending on which opens first (last year pandora opened a bit after hill house, leading to the line for pandora being short by the time people who got in line for hill house on the earlier side of things got out of the maze), then tram, then La Llorona and Hotel Deville or whatever they end up calling it, and finish with Blumhouse, since that location tends to get a rush of guests right after formal opening, but it peters off as the night goes on.