Primarily myself and 1-2 other people. Fly fishing mainly for trout & steelhead -- but maybe shad, striper & salmon. I'd anticipate a minimum of 2-3 uses per year.
Possibly try the Delta, but wouldn't base my decision on it.
High-side drift boat? Low-side? Skiff? Motor or not? 17' or 18'? Best materials seem to be polymer (expensive), then fiberglass, then aluminum (I don't think I could handle the noise produced by aluminum).
A good used boat seems like a better value than a new one.
I used to have a one-man pontoon boat but found it to be a PITA.