nintendo games are consistently alright. the only exception is pokemon.
here's the deal: pokemon used to be alright. if you get a recent game, get a 3ds or older game.
X/Y is a good game, both in plot and gameplay, Sun/Moon are only if you want an easier time beating the literal children's game, or plot matters to you that much. Ultra is ok. tough balancing, even w/ overleveling, by island 2 you resort to high level strats, (potion spam,) but the plot is eh. play if you like an alright challenge.
sword/shield... the plot is ruined by a single bit of detail and the dlc is pay to win at times, seeing as you get free legendaries, unlimited poke if you can afford 4 berries, a master ball i think you don't even have to use, the ability to beef up a lazy made ability, you effectively have to handicap yourself back to gen 4 just to have a challenge.
scarlet/violet is just TPC's hubris manafest. they've hit the "we're too big to fail" stage, because there are a lot of "fans" out there that are deaf to their switches crying out for help, blind to the very greed that fuels this thing's very being. ignorant to the return of the playground rumors themselves.
and this. ain't changing anytime soon man, so vote with your wallet, spare your console, don't get s/v. hecc, get anything not on the switch.