we dont know what kind of vn you enjoy dude
for example i also enjoy Oniichan Sharing,but for people who hates high sex content/loli/imouto this game is a mere nukige.
you should decide by yourself what game you wanted to translate.
but according to your criteria i can make some suggestion based on game i played recently
1.カルマルカ サークル=mostly 3 h scene/heroine and quite short (for me),dont know the exact number of lines but it isn't that long.for the game quality this is one of the best selling vn in 2013.
2.妹のおかげでモテすぎてヤバイ=a nice moege,4 h/heroine shorter than my karukaru,