You may want to take my recommendation with a grain of salt -- I thought The Babadook was very good. But I also agree about Midsommer, so maybe there's hope for me.
I've been hit or miss with catching recent horror movies. Sinners and X have been far and away the most entertaining; Weapons was also quite good. The follow-up to X, Pearl doesn't seem so much a horror movie at first, as a character study; then things change. I agree with critics that the third in that trilogy, Maxxxine isn't as strong; it's still a solid movie, though. (The trilogy may be more enjoyable the more you know about the horror traditions being drawn on.) Nosforatu was beautifully done, though I can't decide if it's a patch on either the original silent movie or the Werner Herzog remake. Last Night in Soho is also good, though it may depend on your tolerance for flashbacks.
I have less enthusiasm for The Black Phone but it's still worth a try, and I think mileage may vary for viewers of Smile and Smile 2 -- I didn't really care for the sequel right after watching it, but the ending has stuck with me. Definitely not great but watchable is Abigail although my generally positive memory of it may be less about the overall effect than about a striking late sequence featuring Katherine Newton -- I've seen her for years, starting in Supernatural, and constantly impressed by her.
For the lighter side of horror, I parked my brains in another room and watched Heart Eyes and found it entertaining. Going back a bit further, better options include Happy Deathday and Happy Deathday 2U, and even better yet, Ready or Not (haven't gotten to the sequel yet). If you don't mind more of the same, Scream 6 was one of the better entries in that franchise; I probably find these watchable because they aren't just horror movies, but who-dun-its. Freaky is also fun -- again with Katherine Newton.
One somewhat older movie I'd really push hard, if you haven't seen it, is The Vast of Night. It doesn't come across as horror but it starts hitting some of those notes as it goes along, and is something of an extended homage to Rod Serling.
