I've been listening to a lot of Odd Future lately. Mostly Tyler, the Creator and Earl Sweatshirt.
I don't like a lot of rap, but they're great. They rap about subjects most rappers don't rap about. They put a lot of emotion into their music. Earl is very lyrical.You relly have to figure out what he is saying. Once you do, you realize that you're listening to someone very smart. Tyler has produced every single song he's ever made, and he has directed all of his own music videos. He also designs all of Odd Future's clothes. He's very creative.
Their production is also much different than most other rappers' music. Tyler has a song where it's mostly just piano - and he raps to it. Tyler has many keyboard chords in his songs as well as many very dark, abstract sounds in his songs. Earl also has been very personal. Tyler encourages people to not care about what others think and just be yourself. I love that.
If you want to listen to Tyler's darker stuff, there's Yonkers (his breakthrough hit), Radicals, She, Transylvania, Tron Cat, Sandwitches (it's intense)- there's many. His more recent album has a bit more calmer songs, yet still personal like Awkward, Answer (this song is amazing), Slater, Treehome, Lone, etc. He has a song where he is just speaking his mind with so much angst called Rusty, which might be my favorite song of his. Earl has a good verse on there too. Tyler's albums also have a storyline. In some songs, he's talking to a therapist named Doctor T.C.
Earl's songs are just really smart and lyrical. You can't go wrong with most of his songs. His songs are also personal. Burgundy, Sunday, Hive, Centurion, Guild, Hoarse, Knight, etc. He's just an excellent lyricist.
If you want smart lyrics, different subjects, personal subjects, and/or original production, can't go wrong with Odd Future. Other rappers in OF include Hodgy Beats, Mike G, Domo Genisis, including others. They're talented too. Look into all of them.
(They also have a very funny show on Adult Swim called Loiter Squad. There's so many videos of the show on YouTube. Look it up for a good laugh.)