Having been on several cruises we have learned what to look for that suits us.
We avoid the family friendly ships. Nothing against children but........
Ports of call.....we have been to a few a couple of times but do our own thing and avoid the organised tours unless something stands out. There are only so many churches that you can enjoy before they blur.
It is the off the beaten track places that attract.
There are some very good offers for 2021 cruises popping up.

:is viewing them but we have Morgan catch-up trips do fit in.
Maybe we will be tempted.