You need to decide what you need to fit your level of comfort. A Cal-25
did a circumnavigation. I sailed 5 years on a Cal 3-30. Back then I
felt like I was a great boat but now I want something much bigger
because I need more comfort.

I suggest that you crew for someone that is going to go cruising. Take
a week or more at a time and crew on a boat doing something like the
Baja Haha or heading down island from Miami. See what is on their boat
and how it holds together. There is no teacher like experience and my
experience is based on my needs, not yours.

Certainly, some boats are not fit for cruising. Hunter, Catalina and
other boats like that are billed as the perfect boats by only their own
advertising. Real life situations kill those types of boats but there
are other factors you will learn to look for. Some people like slow
boats that are 10 feet thick. I like a medium weight boat that sails
fast so I can get up wind or out of the way whey I need to. Each boat
has a set of pros and cons. If you have more space, you have less
performance and vise versa. Sailing on other people's boats will be
about the only way you will really find what you are looking for.
Consider it like a mail order bride. You could do it but you're a lot
better off dating your boat first.