DeepMind's AlphaZero on Carlsen-Caruana Games 1, 3, 5 and 8 (Sicilian Defence)

If you would like to use "AlphaZero lite" to analyze games you can opt for LCZero (Leela Chess Zero) http://lczero.org/ These guys have done a fantastic job on resources that's shoestring budget compared to AlphaZero.

Also our own clone BellaChess https://code.aihello.com/aihello/BellaChess/ it's not really "zero" as it started off with supervised learning of human chess games and then moved on to CPU+GPU engine

AlphaZero has still not faced off against Stockfish on a level playing field, where the Stockfish operators can actually choose optimal settings. And the Leela effort, while very interesting, has not managed to reproduce a better-than-Stockfish chess player using the AlphaZero paper. There is a decent chance that the AlphaZero authors somehow p-hacked, perhaps inadvertently, to get their seemingly impressive results. Until the AlphaZero paper can be reproduced, or a fair competition occurs, I think Stockfish should still be considered the best chess-playing program.