Yes, many of us study the classic Chofetz Chaim works on Lashon Hara...
This link contains many great articles on the laws of Lashon Hara and practicle advice.
https://torah.org/series/halashon/The Arthur B. Morgenstern Shmiras HaLashon Section This class is based upon the “Chofetz Chaim” written by Rabbi Yisrael Meir Kagan, more commonly known as the Chofetz Chaim due to the popularity of his book. The phrase Chofetz Chaim comes from Psalms 34:13 – “Who is the man that desires life (hechofetz chaim), who loves days to see good? Guard your tongue from evil and your lips from speaking guile….”