The redesigned Gaming homepage is a great place to look for new gaming content on YouTube. There are dedicated sections for top live games (which let you explore more content featuring that game), top live streams, trending gaming videos, and the latest gaming videos from your subscriptions.
While watching any gaming video, you can find a link to a game page below the video description. Game pages give you more information about a game, and have different shelves where content for that game is curated from across all of YouTube. You can see recent videos, popular videos, live streams, and even explore other games from the same publisher or developer.
You can also find Gaming Creators on the Rise on the new Gaming home page. Every 7 days an up and coming gaming creator is showcased here and in the gaming Trending tab.