I dunno, 2015, I'm a little weak on this year: It Follows, Creed, Ex Machina, Max Max: Fury Road, Sicario, The Hateful 8. I'd watch those again with someone any time, and recommend all of them often. Several on my to-watch list most of which I expect to be good, like Queen of the Desert, While We're Young, Slow West, and The Overnight, just haven't made it to them yet. Not an exhaustive list, just gleaned from some titles I have at hand.
2016: Green Room, The Nice Guys, Hail Caesar!, The Neon Demon, Swiss Army Man, Hunt for the Wilder People, The VVitch, Train to Busan, Shin Godzilla, Moana (hey, I like this one), Arrival. Moonlight's on my to-watch and is supposed to be really good.
2017 (I've done OK on catching up with these!): The Lost City of Z, Dunkirk, Low Life, Good Time, Logan Lucky (absolutely slept on, kills it as a feel-good lightweight small-stakes heist movie), Blade Runner 2049, The Death of Stalin (I liked this less than a lot of folks, but given how widely-loved it was, I'm probably the idiot here), One Cut of the Dead, You Were Never Really Here. The Planet of the Apes movie from that year, plus Phantom Thread, and The Little Hours are to-watch for me and come highly recommended.
2018: Annihilation, Isle of Dogs, Upgrade, Sorry to Bother You, High Life, Eighth Grade, the Suspiria remake. To-watch that I expect to be good include Champion (Korean arm wrestling movie—there's another movie by the same name that year), First Reformed, BlacKkKLansman, The Favourite, The Wolf House, Climax, and some others.
2019: HUGE year for the particular (small) set I'm seeing on my list, including a ton to-watch but a bunch I've seen. Uncut Gems, The Lighthouse, Knives Out, Little Women, JoJo Rabbit, Ready or Not, Parasite, Midsommar, The Art of Self Defense, maybe Marriage Story (but if you've seen one Baumbach movie, you've kinda seen them all, and I'm not sure I'd put it above The Squid and the Whale). Midway's a well-above-average war movie and pairs great with Tora, Tora, Tora! as a crazy-long double feature in a really fun way. To-watch list is nuts and I really need to dedicate a month or so to filling out my watched-list for this year: First Cow, The Irishman, Portrait of a Lady on Fire, Bacurau, Once Upon a Time in Hollywood, The Farewell, The Souvenir, Blow the Man Down, The Vast of Night, Her Smell, Funan.
It basically just keeps going like that, year after year, and I've barely even tried to dredge up good movies for most of those years, the bulk of it's just stuff that's risen to my attention one way or another, and I'm terrible at keeping up with foreign film especially. I also left off some that a lot of folks would probably include, like at least one Mission Impossible (aside from MI2, I think these are all pretty good action movies, though quality varies a bit) and Avengers: Endgame which, opinion on the rest of Marvel aside (I think it's mostly kinda lazy crap? But was basically entertained for most of them regardless, so I guess I can't complain too much) was a hell of an event. Also Black Panther, which everyone loved but I was pretty meh on (I hate the entire end fight, and it's looooong)