I own three smokers of sorts. If you want the convenience of a set-and-forget smoker, a pellet or gravity-fed smoker is a good option. The big box store options offer a variety of both. I've never owned a pellet; many more options exist for them than gravity fed, but most of my personal friends have been underwhelmed with the smoke flavor, though many on here have had good success. The
Masterbuilt gravity-fed and Chargrill gravity-fed are the main contenders in that category and do produce plenty of smokiness, though this is done in a very different way than a pellet, which burns compressed wood. The primary heat source of the gravity is charcoal; the smoke comes from wood chunks, often placed in the ash bin, which smolder as the embers fall on the wood. I have been told that the Pit Boss brand Pellet smoker is the best and is made in America, though "best" is subjective, and many others feel differently.
You can smoke on a Weber, though it is not a true set-and-forget smoker unless you purchase some aftermarket gizmos, which I hear work well.
For best results, the old school offset smoker is king of the hill for flavor, but it traditionally requires the most effort. All of my best cooks have been on an offset where the primary heat source is wood. Nothing tops the flavor of meat cooked with wood in the BBQ world.