Southern Italy. You can live in a small but beautiful village in the south (e.g Sicily) or any seaside village during autumn/winter.
If you like mountains you have to go north (Dolomites) but it’s harder to find a small village for 1k/month in winter.
Obviously living in big city like Milan or Rome costs around 1500-2000€/month for living.
Honest question: if you’re a long-term visitor, do you get affected by the organised crime at all? My general impression is that tourists are fine, but business owners are in the receiving end of the nastiness.
As Italian, I can say that there is not any risk about organised crime for a "normal" person, unless you are not going to open a shop.
I would feel safer in Sicily than in some zones of Milan.
Obviously living in big city like Milan or Rome costs around 1500-2000€/month for living.