If you like K-R&B/Soul, then you're in luck because there are so many artists in that style right now in S. Korea. Everyday there are new releases in the R&B/Soul style from various artists. In fact there are so many that it's totally flooded the K-Indie scene, and I don't even know where to begin to give recommendations, since you can't swing a dead cat without hitting one these days. I'll post some just to give you an idea of how common the style is in the current K-Indie/K-Pop market:
Among them my favorite is Baek Yerin (also one of my favorite female vocalists):
And that's just the tip of the iceberg--there's so much more. As for where to find all the latest new releases in K-Pop and K-Indie, here are some links that you can check everyday:
https://www.reddit.com/r/kpop/search?q=flair:audio&restrict_sr=on&sort=new&t=all
https://www.reddit.com/r/kpop/search?q=flair:mv+OR+audio+OR+remix&restrict_sr=on&t=all&feature=legacy_search&sort=new
https://www.reddit.com/r/kindie/
There are a couple of other sites I check often but I can't post links to them because they also allow you to download the music. I use them to see what the new releases are. I can PM them to you if you want.
I used to listen to J Rabbit, but then I discovered there are countless other K-Indie artists that sound just like J Rabbit in S. Korea, and more popping up every month, and I now favor the ones with a bit more upbeat sound. In that particular style, Bolbogan4 is currently the reigning queens in terms of success (they're more upbeat and a bit more pop):
BTW, BTS does have some really good songs too. They are actually quite versatile in terms of stylistic range and if you don't like certain type of songs they do, chances are they have other songs you would like.
In the 80's and 90's I listened to so much Japanese music (J-Pop, J-Rock, Anime/movie soundtracks). But in the 90's J-Pop took a nosedive and got much worse (due to the emergence of the Euro dance sound that Komuro Tetsuya brought to Japan, which killed all the unique J-Pop style--everything all ended up sounding the same. Then when AKB48 and similar groups became extremely popular, it also made J-Pop much worse because musically their songs are quite bland and grating and lacking musical merit. That also when K-Pop became really good, so I moved on to K-Pop/K-Indie instead. I still listen to some Japanese stuff, but not nearly as much as I used to in the 80's and 90's. I still love all the 80's and 90's J-Pop/Rock though--they are some of my biggest influences as a composer/songwriter.