Dragon Quest essentially designed that type of game. DQ was 1986, FF1 was 87, essentially designed to ride that hype. Cute monsters in an RP setting acting as comic relief. DQ Slime is exactly that.
The first Zelda game was a month before DQ; but they are different enough from one another that it isn't generally considered a clone; there are a lot more 'adventure/action' mechanics within Zelda, and more importantly neither Zelda or FF1 embraced the 'cute monster' aesthetic as heavily as DQ.
Pokémon is a reskin of FF1 basically. Instead of a poke center to revive, you go to a church, but it is the same basic stuff.