I suggest one that won't make your stern squat. Pick one that is the style you prefer (do you prefer to row, sail or use an outboard).
I prefer a rigid inflatable with a small outboard. Easy to move around, easy to haul up/down a beach myself, somewhat easy to row if the outboard craps out. Plus, your stern isn't going to squat with it. I picked up a very lightly used Walker Bay Genesis with a 4HP outboard on it. She rows well and gets around the anchorage or marina easily under power. It won't get up on a plane with this size motor, but I am not in a hurry. Can easily move 4 people at a time with gear.
I had a fiberglass Livingston on my last boat. It was Lite, stable and quick to row or use the outboard on. Not as stable as an inflatable, but I liked that boat (I like the inflatable I have now better)
Good luck with your choice.