There's a big difference between Aluminium and Fiberglass boats. I've fished boats and much prefer fiberglass, but that seems like a big personal thing. If you like glass boats, I've looked a lot and for sound/straits I'd pick from:

Arima, Grady, Campion, and SeaSport

I've owned 2 Arimas, and they're truly excellent boats, I think they're the best setup boats for fishing of their size. If you go bigger, say 22+ you gotta look at some of the other makes
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The charm of fishing is that it is the pursuit of what is elusive but attainable, a perpetual series of occasions for hope. -John Buchan