Wash, rinse, repeat... The misinformation surrounding the defensive use of firearms, mostly promulgated by the uninformed and inexperienced, refuses to die. Most only "know" what they have read on the internet... Coupla observations:
Shotguns are longer than handguns. Which leads to:
They are difficult to maneuver in hallways, where many home defense "encounters" occur.
They are more easily grabbed by an assailant.
They are more easily "stepped inside of" by an assailant.
They are difficult, if not impossible, to operate with one hand, while holding back an assailant with the other hand.
They are less convenient to have close at hand, or "bedside", making them difficult to retrieve when the assailant makes it that far. Many do, because we are sleeping...
"Over penetration" is a myth. Guys like Maasad Ayoob have made bank by proselytizing its many evils while serving as "expert witnesses". Like Joan Rivers infamously said about the Gabor sisters, "they are only famous for being famous". Ayoob is only an "expert" at being an "expert". Everything he says is unadulterated B.S.
Ask anyone who has actually killed with a handgun, and we will all tell you that penetration is the only thing that matters. Rounds that go "splat" fail, rounds that penetrate win. No one I can recall can relate a righteous, legal, self defense shoot where someone unseen through a wall was inadvertently killed. Of course, that said, someone here will dig and dig until they come up with one, because that's how these sites roll...
In summary, something in the nightstand, that we can grab when startled in bed, that we can shoot one handed, that we can keep the bad guy from grabbing, should be a bare minimum. On top of that, based on our individual circumstances, we can add more. For example, after a series of BLM/ANTIFA/CHAZ/CHOP inspired local incidents of unrest, I began keeping my M1A in the closet with a 20 round mag inserted, for "neighborhood" work. There will, however, always be that handgun in the night stand, close at hand. Loaded with hard cast lead bullets designed to "over" penetrate.