I would recommend the following dinghy daysailors:
American 14.6 or 18 used at a lot of sailing schools. centerboard only and pretty stable under 10MPH Both will plane at 12 MPH winds and I have clocked the 18 at 7MPH GPS on 12 MPH. They need to have plugs on scuppers while sailing but will self bail without passengers. Keep your hand on the mainsheet on these if wind picks up. They will plane readily.
Catalina 14.2 or for more space 16.5 they are both available with fixed keel.
You can try a 14.2keel at a rental on Mission Bay, CA or a 16.5keel at a rental place in Santa Barbara. These boats are pretty beat up but in usable condition and will give you an idea on how they hold up to abuse. I sailed the 16.5 and found it to point very high. It felt like a much bigger keelboat at windspeeds 8 to 15. Not a leaner and does not need plugs on scuppers. Water drains out with 2 passengers in boat. Cockpit remains dry
The 16.5k proved to be my preferred boat after the Compac suncat daysailer due to it's keel. I often sail in the ocean and wind speeds run from 8MPH to 25MPH the same day.
Compac 14 picnic cat or 17' suncat. These are very well built and sturdy craft but very sllllooooowwww. Easiest boats to trailer of rig. Just slow. Wet cockpit, water does not drain out on picnic cat as scuppers are too high. Water comes in through centerboard uphaul cable or line. Expensive boats new or used.
Precision 15. I examined one at a dealers. workmanship is below others listed above. Hull and cap are held together by rivets. some rivets do not go through. Very flexible which turned me off quickly as this guarantees gelcoat problems in the future. Very light. Not impressed.