Back when Seinfeld was airing, there were a TON of Seinfeld clones. Even to this day, there are South Park, Simpsons and Family Guy clones.
And most of them sucked. The
South Park clones especially. There's a reason why a lot of South Park clones died out in the mid 2010s. Most of it was just gross out and shock humor with little or no substance. Shallow edginess for the sake of edginess. The
Family Guy clones were mostly Seth MacFarlane ripping off himself.
American Dad & Cleveland are basically the same show with minuet differences. Now we got
Rick and Morty clones for the past couple of years. Once again, a majority of them are not that good or worse. I don't even care much
Rick and Morty. I heard
Inside Job is pretty good on Netflix. From what I seen, it looks like a clone, but goes off and does its own thing. There's also that Star Trek animated spin-off, which is a similar art style to
Rick and Morty, but is on its third season now, so it did something right.