If no one else has told you yet, yes it absolutely is worth exploring more of his music, 6lack is fantastic.
I personally prefer his first album, it's a bit more moody, solemn and more like Frank Ocean's "blonde" whereas his second album is a bit more uptempo.
Saba is also a really good artist, he's a rapper but he's melodic & rhythmic so he bends the two genres a bit.
This is one of my favourite songs from him
Heres a song with Saba, 6lack & Smino (also another really good artist)
Others to check out; SiR, Masego, Lucky Daye, James Blake.
If you specifically just want some lo-fi-type instrumentals then look into J Dilla and also Nujabes, their styles heavily birthed a lot of these beat styles that these types of artists use.