for reverse isekai, i would suggest the devil is a partimer.

other isekai that other may missed:

1. Zero no Tsukaima
2. Mondaiji-Tachi Ga Isekai Kara Kuru Sō Desu yo?
3. Drifters (one of my favorite opening theme there)
4. The Philosopher's Grandson
5. High School Prodigies Have it Easy Even in Another World
6. Isekai Cheat Magician

i would recommend for u to watch 1,2 and especially number 3 since its one of my personal favorite isekai anime

now 4,5 and 6 is not really that great. but i guess for ur quench of isekai anime, it should be okay for u.

heart wrenching ones?

hurm...

1. welcome to NHK
2. Clanned
3. toradora - mostly at the end of the season
4. angel beats
5. you lie in april-----> manly tears were shed
6. Ano Hi Mita Hana no Namae wo Bokutachi wa Mada Shiranai (Anohana) ---> damn i like the story!
7. Plastic Memories
8. Love, chunibyo and other delusions - the last part of season one.. its actually a romcom but there's a tear jerker there too
9. barakamon ---->its heartwarming but at the same time can be a bit sad.... mostly a heartwarming but i put it just for u to watch
10. bakuman ----->3 seasons if im not mistaken. and u should watch all of it.
11. white album
there are others that tear jerker anime but i only remember those mention above.... now get ready ur tissues because its going to be a roller coaster of emotions lol....

1. high school dxd - boarderline ecchi
2. to love ru and to love ru darkness - kindda ecchi
3. interspecies reviewer - kindda reversed isekai and boarder softcore lol (not the kind slice of life but its interesting lol)
4. everyday life with monster girls
5. netoge no yome wa onnanoko ja nai to omotta?
6, shinmai maou no testament
7. rokujousama no shinryakusha!?
8. toru Majutsu no Index


i guess thats what i can remember. some of the list is not really like the setting of Machiavelism and like no.4 and no.5 there are less fighting to no fighting... but interesting to watch non the less