I havent used all these, so your milage may vary, but I was looking for a similar thing not long ago. Https://www.backloggd.com Https://rawg.io Https://wetheplayers.com Https://www.grouvee.com/ Https://gamelib.app/explore Https://backloggery.com/ Https://playnite.link/ There's also just using a spreadsheet, or Notion with a good template. Source: about 1 year ago

I've been investigating platforms such as catapult.gg and indieboost.com and wondering if they are worth it. Source: over 2 years ago

By a company called Indie Boost. It's how they get all their sponsorships. You can read how it works on their website. Source: almost 3 years ago

Unfortunately, your game will not get any attention if you do not advertise/market it aggressively. Services such as IndieBoost, can help with promotion. You could also consider integrating an Affiliate Marketing campaign directly within the game itself to promote the game. Source: almost 3 years ago