Without knowing what you like doing on holiday we can’t really help 

I would love to visit cities of art, museums or natural parks. I am open to any suggestions

For 8days i would Consider Vienna/Bratislava + Budapest and or Prague :) 

Pretty cheap fares between these Cities no need to buy Interrail (unless you wanna include your onward Journey and your Journey back home :) 

thank you!

great idea, if i would like to go in bathing areas where could I go? any suggestion?

guys

I thought of an interesting and very summery alternative:

Monaco, Marseille and Montepellier

what do you think?

Using Interrail for France is usually a pain in the *ss for unseasoned interrail users, lack of flexibility, expensive reservation system and limited reservation free options.

And if you come from Italy, best look for ordinary tickets for these destinations. It might be a lot cheaper, than interrail + reservation cost. Especially if you stick to TER trains in France.

yes, i think that the ordinary tickets are the best option for me, i hope to use the interrail ticket in europe soon 

thank you brendan