I’m not big on building playlists but I do have an appreciation for the Spotify interface with regards to suggesting other titles/artists that “Connect” with what I’ve been listening to. I haven’t had much experience yet with Qobuz as I’ve only recently started using it.
Along the lines of what @bigtwin describes the interface in my Naim Uniti Core has an excellent method of supplying album/artist facts and recommending similar music.
Once a disk is ripped onto the server album art and data are brought in via Rovi, Music Brainz and Free DB. On the album page is a press review of the title and a link to a booklet. The booklet lists all track/performer/credit data as well as pictures of the artist. All references are hyperlinked for immediate browsing. At the end of the booklet there are multiple page lists of similar artists and recordings with hyperlinks. You can also use the descriptors provided with the associated links to sort your library by genre. It’s really nice.
Mostly when it comes to finding new music or artists though I rely on the AOTY website. This site lists all music releases by genre or by release date. I check it and sort every couple of weeks, audition the music via my Lumin on Qobuz/Spotify and makes notes of what I want. When I have enough titles to keep me busy for a few weeks I place an order and then repeat the process. It never ends!