Aside from the occasional Nintendo exclusive, the main reason to have a Switch is for the portability. If you think you would take advantage of that aspect, then sure, go for it. Otherwise I could only really recommend it at this point if you REALLY love Mario/Zelda/Metroid/Pokemon.
Bought the OLED version for my SO. She plays Animal Crossing. I sometimes play Rocket League on it. Other than that, I don't know what else I would play. Not a big gamer anymore. It's a nice little device though.
my boys and my wife and I all love our switch. we basically play the mario games and zelda.
super mario delux
mario maker 2
breath of the wild (worth it for this game alone, can't wait for the sequel)
Luigi's Mansion (a totally awesome and very underrated game)
i also enjoy playing old nintendo titles on it but i also have most of them on my old Wii which also has awesome games that i enjoy replaying sometimes.
Some of the bigger gamds that are coming next year:
Breath of the Wild 2
Kirby and the Forgotten Land
Mario + Rabbids: Spark of Hope
Pokemon Legends Arceus
Most of these are coming out in the first half of the year and Nintendo hasn't released their second half schedule yet. So you have 6 games that will most likely be great + everything else that's already out.
If you're not into Nintendo games and aren't interested in what's out already then keep your money and don't buy a Switch.