Some of the best rappers include Eminem, Kendrick Lamar, J Cole, Jay Electronica, and Cardi B. These artists are known for their lyrical prowess, influence on the genre, and unique styles.

Eminem, also known as The Real Slim Shady, is considered one of the best rappers due to his impactful songs like 'Mockingbird', 'Without Me', 'Lose Yourself', and 'Rap God'. His ability to craft intricate rhymes and his influence on the rap genre have cemented his reputation.

Kendrick Lamar is often regarded as one of the greatest rappers of all time. He is known for his deep, thought-provoking lyrics and storytelling ability. He is also the only musician outside of classical and jazz genres to be awarded the Pulitzer Prize for Music.

Some popular songs by J Cole include 'Love Yourz', 'Black Friday', 'No Role Modelz', 'Wet Dreamz', 'G.O.M.D.', 'Apparently', 'Middle Child', 'A Tale of 2 Citiez', 'Crooked Smile (feat. TLC)', and 'Lights Please'.

Notable tracks by Jay Electronica include 'Exhibit A (feat. Mos Def)', 'Exhibit C', 'Shiny Suit Theory (feat. Jay-Z)', 'Eternal Sunshine', 'Dear Moleskine', and 'Dimethyltryptamine (DMT)'.

Cardi B is one of the most successful female rappers known for her bold personality and unapologetic lyrics. She gained widespread attention with songs like 'Bodak Yellow' and 'WAP'. Her fearless approach to music and public persona has made her a significant figure in the genre.