You can't go wrong in the F18 cat'agory.
The class is doing well and growing.

If you like to have the ooption to sail in a variety of wind conditions including the big wind days, then maybe consider one of the single hand spin boats.

There are a few too choose from. Most can easily accomodate more than one person. A couple are 1-up or 2-up sailed. A jib option is available for the 2-up saling.

Hobie FX One
F16 (various manufacturer)
Inter 17 Nacra

If your wife/family/friends that are potential crew are not intense racers or sailors one of these boats may be right for you as they are easily saied with one or two.

I own both the F18 and the FX One and I love them both. But for some one who may use the boat more recreationally you may want to consider one of these.
Easily carries the extra weight and the room on the tramp is very similar to an F18.