Film criticism itself has suffered greatly in recent memory; at the end of the day, whatever trouble a critic might have gone to to watch, process, and articulate their thoughts on a given film is now reduced almost entirely to a number on Rotten Tomatoes.
Youtube is a great place to start looking. It has a lot of trash, but there are some extraordinary essayists and writers giving robust and insightful looks into films new and old.
Off the top of my head:
1. House of Tabula - Essays on art and culture, with a heavy emphasis on film, old and new. https://www.youtube.com/@TheHouseofTabula/videos
2. Deep Dive - Lewis from House of Tabula doing 10-15 min reviews of recent theatrical releases: https://www.youtube.com/@DEEPDIVETHOT/videos
3. Spikima Movies https://www.youtube.com/@SpikimaMovies/videos
4. Thomas Flight https://www.youtube.com/@ThomasFlight/videos
These channels (expect for #2) all diverge from straightforward reviews, but what they give you are the tools to articulate what the film is doing, how it is doing it, and therefore equip you to become your own critic. Someone capable of thinking critically.
I always like to remind people that before talk heads were battling it out on cable news or ESPN we had Siskel and Ebert shaking things up. They made me realize that movies could carry subtext, nuance and meaning. They made reading ABOUT movies more interesting.