Torrent Radar is described as 'torrentradar.me is a fast and clean meta torrent search engine. It indexes torrent information from many popular torrent websites, but does not host any torrent files' and is a torrent search engine in the file sharing category. There are more than 10 alternatives to Torrent Radar, not only websites but also apps for Windows. The best alternative is The Pirate Bay, which is free. Other great sites and apps similar to Torrent Radar are 1337X, RARBG, LimeTorrents and Torrends.to.
Torrent Radar is mainly a Torrent Search Engine but alternatives to it may also be Torrent Trackers. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Torrent Radar.