There are acclaimed several VNs I want translated but they seem rather long and the literacy level/translation difficulty is high. (Soukou Akki Muramasa, Sakura no Uta)
So stay away from those.
You wouldn't want your first project to leave you discouraged.
Instead, I'll give you some reasonable recommendations.
https://vndb.org/v13321
This is an original story, it is short and I don't know much about it but it has a decent VNDB rating
https://vndb.org/v4876
This VN has a score of 7.61, which is fairly good. And it is short (2-10) hour length.
It's an afterstory/fandisc to a VN (original is mildly popular), ranked #150 in popularity scale on VNDB out of too many to count
I hope this helps and best of luck to you guy.