I am in need of help concerning the most efficient (money and time wise) route from italy, specifically florence or bologna to greece.

i have done some research but am confused and am now flustered with the abundance of information, which is not making sense to me.

1. i am not sure how to get to Brindisi or Anacona
2. i am not sure of which port is better to depart at.
3. Which ferry line is better. (the costs seem to vary alot)

We haven’t planned our itinerary of the greek islands yet, so we are open to options of transportation. Our ETA is around June 18.
ALL suggestions are greatly appreciated. Thanks.