>>8695980
https://vndb.org/g1663?m=2&m=0&l=&f=022hen3gja&s=22w

The above is a list of all Japanese NTS VNs that do not have an official English translation. If any of them catch your attention, you can then do another search on f95zone to make sure they do not have an unofficial translation, either. The following look interesting:

Boku to Kanojo no Midara na Utage
https://vndb.org/v26305

Hitozuma Koukan Nikki
https://vndb.org/v2896

Pafu Pafu Sentou Monogatari! ~Machi no Ofuroya-san, Hanjou no Hiketsu wa H na Massage~
https://vndb.org/v20680

And the following have MTL translations only; maybe you want to compare your tool against them?

Koibito Swapping
https://f95zone.to/threads/koibito-swapping-final-atelier-sakura.158748/

My girlfriend seems to desire another man's dick.
https://f95zone.to/threads/ore-no-kanojo-wa-taninbou-ga-ki-ni-naru-you-desu-final-anim-teammm.244557/

The NTR masochistic life of depravity that begins with cuckoldry
https://f95zone.to/threads/mtl-netorase-kara-hajimaru-daraku-no-ntr-mazo-seikatsu-anata-no-ochi-chin-wa-onani-senyou-desu-rj223309-ankoku-azumaya.259797/