The English translation by Andrew Frisardi is available via Digital Dante.

https://digitaldante.columbia.edu/library/la-vita-nuova-frisardi/

Dante Alighieri, Vita Nova, trans. Andrew Frisardi (Evanston: Northwestern UP, 2012)

The Italian text is also available via Digital Dante.

https://digitaldante.columbia.edu/library/la-vita-nuova/

A few chapters of note in Italian: Chapter XIX (Donne ch’avete intelletto d’amore), Chapter XX (Amore e ‘l cor gentil sono una cosa), Chapter XXVI (Tanto gentile e tanto onesta pare)