i dont think any service is going to give you free weeks or a month with no strings attached. if they did everybody would use them and not pay. you can just buy 1 unlimited month of frugal usenet for 5 bucks (not a subscription) and call it good.

Keep an eye on black friday deals, they are usually the best around. You may get lifetime deals on the cheap from indexers, cheap blocks/subs from server providers. It's a steep, but rewarding learning curve. Can't help you with Italian content though.

I don’t think you’ll find many providers that offer free trials, although I stand to be corrected. But some will accept crypto so if you don’t want to give your credit card details you could try that.

I use Astraweb because I can buy 1000GB at a time that doesn't expire so I avoid the monthly fees. Works well for me as I don't do a high volume and it removes any feeling of pressure to use it more than I need.

I use eweka.nl & nzbplanet, works fine