There is a pay online TV, called LVF TV.
It's 50 euro for all the matches (live and on demand). They'll show all the matches of A1 and A2 (Italian Championship, Italian Cup, Supercup, Play off etc) except the matches aired by Rai, but I think they have on demand also the matches broadcasted by Rai.
Raisport will also stream about one matches for week (something more during play off), they have the live streaming too but outside Italy you'll need a VPN.
Plus, I'm not an expert on the female side, but few teams may have a local TV that shows the matches for free (not live). You have to verify if they have an online streaming too, though.
I tried VPN on Rai many times for it does not work. I wish it was Laola streaming again and not Rai.