Not sure what the best solution for sports is, but the simplest, most reliable option for streaming is a debrid subscription used in conjunction with Stremio on MacOS, Vidi on Apple TV, and Stremio Lite or Vidi on iOS.

While there’s free websites that aggregate streaming servers for movies and tv shows, their unreliability arguably makes debrid reliability worth the added cost. Here’s a debrid service pricing chart.

In the case of 1337x.to, the megathread lists 1377x.to as the fake replica of it. In terms of quality, 1337x.to is one of the best public torrent indexers.

While I personally prefer not to use YTS releases due to their low quality, and can’t seem to find a legitimate YTS link that yts.mx would be the replica of, as long as you’re downloading via Prowlarr rather than going to the website itself, the only risk is the trustworthiness of the releases, rather than the possibility of ads or otherwise unwanted links on the website itself.