Do you characterize yourself as a "push-button preference" guy or a "fiddle and check-it" guy?
That may help you decide where to start. We have eliminated charcoal per your preferences -so:
One can assume that a stick burner whether direct or indirect, is out of the selection as well. Similar time involvement, and skill set required to operate those.
Gas powered grills can give you some degree of consistant temps - once you have learned the particular grill's personality. But that requires time and some under/over-cooked food to learn
. It also requires that the tank is full when you need to cook
.
As long as you have a plug in handy there are several other ways to go there are electric grills - which are...o.k. but lack power or size for larger cooks. Charbroil make a Patio Bistro that comes to mind.
There are the "box" smokers that are electric ( Bradley and Masterbuilt are the most popular) but they are limited to around 250F - so are for low and slow cooking only.
And, you have seen the info on pellet cookers, so I do not want to re-hash those. But they have been the choice by so many because they can "do it all" - if you choose a unit with a broad temp. range. The learning curve is short, and simple. This is especially true if you purchase a good quality remote thermometer for monitoring the meat temp during the cook. Some brands even have a meat probe built into the controller panel.
The cost is something that you have to consider as well. Yes, it does cost more for quality, and for some features. But the successful mix is one that is a compromise that fits YOU.
It is a great thing to have so many choices. Enjoy the exploration and feel free to ask any questions. As you have seen, we have a lot of folks here that are always willing to help.
T