The top results based on the latest update are The Legend of Bum-Bo [Score: 1.4], Heroes of Hammerwatch [Score: 1.3] and UnderMine [Score: 1.2].
The top rated games you can find here are Hades [SteamPeek Rating: 11.5] ranked #7, Risk of Rain 2 [SteamPeek Rating: 11.0] ranked #12 and Slay the Spire [SteamPeek Rating: 11.0] ranked #56.
Also don't forget to check the newest releases Luck be a Landlord [Release date: 2021-01-08] ranked #213, Endless Voyage [Release date: 2021-01-07] ranked #232 and Arcanium [Release date: 2020-12-08] ranked #197.
While it is tempting to play with the newest and the best, there might be some other gems in the results, like Bad North [SteamPeek Rating: 7.4] ranked #52, Spelunky 2 [SteamPeek Rating: 8.5] ranked #53 and CHANGE: A Homeless Survival Experience [SteamPeek Rating: 6.4] ranked #54.