I've started watching Arcane on Netflix, which is an animated series based on the League of Legends online game. I have no idea how faithful the series is to the game, of which I know absolutely nothing, but the animation is visually stunning and the story is like a pretty good YA (young adult) fantasy novel. It's been getting raves all over the internet, including (currently) 100%/98% on Rotten Tomatoes. From what I've seen so far, I completely concur.
Years ago, I really loved Neil Gaiman's Neverwhere urban fantasy novel, which was itself a novelization of a live action fantasy miniseries he worked on, which had an interesting premise but was fatally hampered by a low budget and production values, and like much other 80's-90's material, was a victim of that unfortunate technological era where they had stopped shooting TV shows with film stock, but didn't yet have the 1080p video standard, much less 4K, so everything was shot on horrible SD resolution video cameras. Anyway, Arcane takes place in a world somewhat reminiscent of that novel, and its outstanding quality makes me think that the studio responsible (Fortiche) could finally do justice to London Underground, the fictional setting of Neverwhere.
(Side note: If Neverwhere's London-flavoured urban fantasy is your bag, a few months back I read and greatly enjoyed the "Matthew Swift" series by Kate Griffin (aka Catherine Webb, aka Claire North), and it has much the same vibe.)