Top 10 Isekai
1. Serial Killer Reincarnated into Another World
2. The Executed Sage Reincarnated - Decides to take revenge on humanity
3. The Dungeon That Kills All Adventurers
4. Dungeon People
5. Konosuba
6. Summoned To A Parallel Fantasy World Multiple Times
7. Exiled Heavy Knight Knows How To Game The System
8. Overlord
9. Kumo desu ga, Nani ka?
10. Verses
(BONUS : Nito no Taidana isekai shoukougun Healer. He literally gets his revenge so quickly that it throws you off guard, and let me tell you he fucking massacres everyone)

If you disagree with this list, you're a fucking normie with shit taste.