Le$ and 2Ru3, Le$ I say is only unknown as far as the real big popular sites and people that mainly get their music from there, but he's definitely got 1,000s of fans and has been with people like Slim Thug, Curren$y and now he's got his own independent label situation going on.
But 2Ru3 (true) can be legitly considered unknown, he has his own indepedent label situation and you can even google his name and find him easily, but he doesn't have the 1,000s of fans and real solid support like Le$ and other artist farther ahead have. So far he's put out two projects one being his debut EP "Alpha (The Beginning)": https://open.spotify.com/album/4ZvCCpDSQ4N3jPD2uZmXGU
And his latest project "2Ru3 Stylin' (Revisited)" he put out on DatPiff, MyMixtapez & Spinrilla and a bonus track to it, too.
I really enjoy Ah-Mer-Ah-Su 's music. It is a very dreamy, lyrically heavy type of electronic pop. I stumbled across her by chance, and I am very happy that I did. She currently has about 450 Spotify followers.