As a music enthusiast and collector myself I'm familiar with that feeling as well as the disappointing state of recommendation engines.
However I think it's easy to fall into a habit/routine of constantly looking for and acquiring new (to me) releases when it actually may be a good idea to take a step back, rediscover the collection you already have and go back to passively stumbling upon hidden gems rather than actively seeking them out in a Discogs dive with a few dozen open tabs.
Radio, like NTS[0] as well as the mixes of other curators/DJs have indeed been a great source of inspiration for a more relaxed approach to discovery.
Personal favourites are UK's BBC 6 Music, and a small Lisbon-based station called Oxygenio[1]
[0]https://www.soundshelter.net
[1]https://www.radio.net/s/oxigenio