SoundCloud is one of the most popular site to discover new artists and listen music. There are many music genres. You can find also charts, Android and iOS apps are available. Playlist support.
On Mixcloud you can listen millions of DJ mixes, podcasts, radio shows and mixtapes. There are many music genres. Android and iOS apps are available.
To download the tracks in mp3 format i suggest to use Mixcloud Downloader, available both as online converter and Google Chrome extension and Mozilla Firefox addon.
Bandcamp is another popular site to discover new artists and listen music.
To download the tracks in mp3 format i suggest to use video-download.co online converter.
On Mix-sets you can find many free Dj sets to listen. You can download the DJ sets directly from the website after free registration.
On Play.fm you can find DJ, genres and brands, there are trending mixes, popular mixes, new mixes. You can find the mixes also by choosing cities.
hearthis.at is another site that allows to listen many DJ sets, mixes and tracks. Android and iOS apps are available.
To download the tracks in mp3 format i suggest to use BitDownloader, a free online converter.