This is the 78th most frequent Italian word.
sarebbe
"Would be."
In this case, 'sarebbe' is part of a modal expression, combining the potential mood with a sense of inquiry about the hypothetical action of someone willing to assist.
Mi chiedo chi sarebbe disposto ad aiutarmi.
I wonder who would be willing to help me.
Here, 'sarebbe' conveys a conditionally desirable scenario, suggesting that having a map could provide utility in an undefined context.
Sarebbe utile avere una mappa.
It would be useful to have a map.
Here, 'sarebbe' is used to express a conditional hypothetical situation, implying that going to the beach today is an idea being entertained but not decided upon.