That's not really my area, but I can offer a few. The big one would be the new Brill's Companion to Nonnus (2016) and anything by Domenico Accorinti, who seems

That's not really my area, but I can offer a few. The big one would be the new Brill's Companion to Nonnus (2016) and anything by Domenico Accorinti, who seems to be the person most often working on Nonnus now. - Accorinti, D. 2020. "Did Nonnus Really Want to Write a 'Gospel Epic?' The Amabiguous Genre of the _Paraphrase of the Gospel According to John._ In Hadjittofi, F. and Lefteratou, A. eds. _The Genres of Late Antique Christian Poetry_. Berlin: De Gruyter. 225–48. - Accorinti, D. 2016. _Brill's Companion to Nonnus of Panopolis._ Leiden: Brill. - Hadjittofi F. 2020. "The Poet and the Evangelist in Nonnus' Paraphrase of the Gospel According to John." Cambridge Classical Journal 66: 70–95.