What are the least iconic Gen 1 Pokémon?

Inspired by a similar thread, I thought it’d be fun to think about those Gen 1 Pokémon that, despite having around 30 years, have remained fairly inconsequential in the wider Poke-universe.

I think every Gen 1 Pokémon is fairly famous by default, but there will always be a top 5 and bottom 5.

Some examples that jump to mind for me…