Basically not best but closest to best isekai.
Saijaku Tamer wa Gomi Hiroi no Tabi wo Hajimemashita is an isekai genre but the isekai part has been covered by another spirit (not sure how to say..) that goes with main character and helps her a lot. She has a powerful slime that can detect any enemies or any liars.
The best thing about this series is everyone has a specific job. They are not background person at all. This anime is similar to Frieren: Beyond Journey's End but i only rate them 8, this one is 10. (I even want 11 because i love slime as a pet). Too cute.
Overall : 11/10
