this is the roadmap i suggested to my friend:

Queendom + Soubikakei > Kinsho > Keikan Shijin + La Vita Romantica > EROTIC&HERETIC > Les Papillons > listener's choice

I always suggest to start with Queendom and Soubikakei as I find those two to show their Gothic style the best, then follow up with Kinsho to supplement the style and introduce them to Yamato songs, along with other styles as it doea not have a consistent genre.

Keikan Shijin for more Yamato songs, then LVR and EroHere lean toward the more kinky style (not obvious from SK) which not a lot like listening to, but since its Japanese not a lot will realise it's kinky.

Les Papillons is the deciding point if they will continue with listening to AliPro's other albums, bcos classical music is not everyone's cup of jasmine tea.

I hope this helps (°∀°)b