If you don't have a problem with sharing your listening data:
- Last.fm (for example, check "similar to" section of artist pages or "similar albums" of album pages)
- ListenBrainz, a free and open source alternative to Last.fm (for example, Music Neighbourhood, ListenBrainz Radio, or the "Created for you" playlists (they have been criticised by people for having too little variety, but according to the devs this will increase as more people use the service))
Or you can just ask people for recommendations.
Thank you for this information! I thought you can only select one language in your personal settings and thats why I haven't selected any language at all until now, but selecting multiple ones works the same way as you described it for the community settings. Maybe this should be clarified on the settings page.