digital artist reporting in!
i’ve used quite a variation of drawing tablets- intuos 4, bamboos, and the intuos small like you’ve mentioned. i have a large monitor as well, but i find my current tablet, the intuos small, fits it just fine. size of the tablet never seems to be an issue unless you’re kinda nitpicky about that stuff- or if you have a pen monitor instead. pen monitors are a whole other story.
i wouldn’t spend a bunch of money on a tablet if it’s your first time, either. you’ll never know how much you’ll use it or if the format is suitable for you, so it’s best to take a trial run with the cheapest option.
but, if you’re really determined to get one with a bigger active area, look into this other graphics tablet brand called huion. they have the biggest active area of a graphics tablet on the market, and i’ve heard great things about it. the model is called the huion giano, for reference. (also, an awesome side to the huion giano; it has 2048 pen pressure levels unlike the 1000 or so that the tablets you’re looking into have! it’s the highest amount of pen pressure available, from what i know)
hope this helps!!! as an artist, by the way, feel free to message me any time with questions, and i can link you resources appropriately