Your situation needs more definition... what size boat are you after, how much money can you spend, are into "camper" cruising or do you need amenities like shower, h&c water, fridge, standing headroom etc.
Trailerable? Do you have moorage in mind?
1984 Fast/Nicholson 345 "FastForward"
".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)