The top results based on the latest update are Door Kickers [Score: 1.4], Shadow Tactics: Blades of the Shogun [Score: 1.3] and XCOM: Enemy Unknown [Score: 1.2].
The top rated games you can find here are Counter-Strike: Global Offensive [SteamPeek Rating: 13.6] ranked #29, Tom Clancy's Rainbow Six Siege [SteamPeek Rating: 11.9] ranked #7 and Counter-Strike [SteamPeek Rating: 11.2] ranked #105.
Also don't forget to check the newest releases Hero by Chance [Release date: 2021-01-08] ranked #145, Cruelty Squad [Release date: 2021-01-04] ranked #165 and Dungeon Slime [Release date: 2020-12-15] ranked #226.
While it is tempting to play with the newest and the best, there might be some other gems in the results, like Police Stories [SteamPeek Rating: 6.9] ranked #52, Silent Storm [SteamPeek Rating: 5.8] ranked #53 and Ancestors Legacy [SteamPeek Rating: 6.6] ranked #54.