j balvin is the shit right now (6th most listeners on spotify). he made mi gente which is basically despacito 2 and you've probably heard it already but his album Vibras is pretty good

rosalía takes inspiration from spanish flamenco, her second album came out 2 months ago and it's one of the best albums of the year so check it out too

if you want more in spanish you can always check the country specific playlists in spotify, some like Éxitos España, Éxitos Argentina or the countries top 50. There's a lot of trash in those playlists but it will be like something new to you so definitely check them out.

Yeah they are quite different :)

TIL it's called an erhu, thanks :D
The whole band screams badassiness, check out their second music video