As said above, a lot depends upon how you plan to use the dinghy
. If it's just a short row from the dinghy
dock out to the mooring, a pram might be good. Do you plan to take the dinghy
with you cruising, or leave it on the mooring until you get back to it? On a 27' boat, there's not a lot of room to carry a dinghy
on deck. Kayaks do not make good dinghies. They're hard to get in & out of, and are difficult to load with duffles of gear or bags of groceries or drinks. Towing a dinghy behind may not be a good idea if you're out in rough weather. An inflatable (with a motor) could be stowed below, and give you a bigger range for exploring the harbors you visit. A gently-used one might be a good bet.