Hello to all ---

I'm hoping someone can answer my questions
Every year up until Covid I book my trip to Delta as a multi-city trip :

What I would like to do in the next 30 days, book a multi-city flight through Delta. First flying into Venice or Rome.....and staying there for 11 or 12 days.

Then take a commuter flight like Ryan air to Madrid, staying there for a week and flying back to the US.

I am not vaccinated but have had Covid back in December and can pass and would have negative a PCR test.
The Italy part I see no problem with....but I am wondering if there will be any problems with Spain, as they have not announced any definitive rules yet for US travelers?

Thanks in advance for any replies