Based on our record, LivePlasma should be more popular than Musicroamer. It has been mentiond 3 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Personally, I would recommend sites like liveplasma.com and rateyourmusic.com. With the former you can input an artist and it'll give you a "web" of connected ones, which you can then explore from. The latter will have charts of highly rated albums for every weirdly specific subgenre you can think of. You can also filter down by moods and descriptors. And like poolywisp, I would recommend just going through some... Source: about 2 years ago
Https://liveplasma.com/ - very fancy website, limited range of artists though. Source: about 2 years ago
Wait I think I found it https://liveplasma.com/. Source: almost 3 years ago
Seeing as how you commented elsewhere that you're prepping for a DJ set, presumably for a genre you don't know too well, you might want to stick the relevant musicians in Ishkur's Guide to Electronic Music into a portal like Music-Map, Gnoosic, or Music Roamer to see what else comes up. Source: about 2 years ago
I took OP's question as a media discovery tool for Lidarr and not so much the request management side of things, but I could be wrong. I'd be interested in the media discovery side of things. I often play around in MusicRoamer, but it's not at all linked to Lidarr. Source: about 2 years ago
TasteDive - TasteDive recommends similar music (musicians, bands), movies, TV shows, books, authors and games, based on what you like.
BandNext - Discover bands that sound similar to artists you already love with BandNext. A single click saves your results to a Youtube playlist.
Gnoosic - Even if you don't know what you are looking for - gnod will find it.
Songstack - Swipe to discover new music for Spotify
Music Walker - Explore and play (via YouTube) songs similar to a seed song.
Music-Map - The Music-Map is the Tourist Map of Music, part of Gnod, the Global Network of Discovery.