I haven't personally used it, but I do know that ListenBrainz offers a Last.FM-esque experience, and I see it does have a "similar artists" section. I'm in a similar boat as you though. Most of the Spotify-generated stuff is just repeats of songs I've already liked or just generic songs.
I've been diving into the past about artists I've been meaning to check out and also using Rate Your Music to stay semi-conscious of what's popular today.
I like the premise of the site but the "The Opt Out Way to Use Email" even mentioning using LastPass despite their multiple breaches makes me question this site.
To me, the "casual blog post" format is a turn off, and I don't think the website is effective at all. Instead of random advice showing up in random posts that read like stories, the website needs simple, succinct and highly organized guides that people can easily follow.
I think what needs to be appreciated is that the vast majority of people don't use any password manager. LastPass inspite of its many red-flags is still better than nothing, and is usually a good starting point for a less tech-savy person. Within the context of this site what needs to be accounted for is their target audience. If it's aimed at people new to the whole idea of cyber security then it makes sense, but if it's aimed at more experienced users then yes 100% LastPass is a terrible suggestion.
Sorry but this is terrible advice. LastPass had a huge breach with website data included along with many breaches over the past years. Please look into them further.
Why do you bother to write such a long, meaningless comment when other free/paid password managers are easily available? What's the point and what are you advocating for?