SmashChamp
If life gives you pickles, you should eat them.
Towns Folk
Although clones were rather controversial, I kinda liked them tbh. They added a spin to characters already in the game, and I just find them overall interesting.
Here's a few potential ones off the top of my mind.
Funky Kong as DK echo
Dark Samus as Samus echo
Octoling for Inkling echo? Could be good to promote Octo expansion
Isabelle as Villager echo. I think she's fine as an assist trophy, but she's pretty popular.
Chrom as Ike/Marth echo. Robin Final Smash hasn't been shown yet, and Morgan could replace Chrom in the Final Smash.
Ken as Ryu echo
I see Birdo as a Yoshi echo tossed around, but I'm not sure if that'd work.
Who would you all like to see as echoes?
Here's a few potential ones off the top of my mind.
Funky Kong as DK echo
Dark Samus as Samus echo
Octoling for Inkling echo? Could be good to promote Octo expansion
Isabelle as Villager echo. I think she's fine as an assist trophy, but she's pretty popular.
Chrom as Ike/Marth echo. Robin Final Smash hasn't been shown yet, and Morgan could replace Chrom in the Final Smash.
Ken as Ryu echo
I see Birdo as a Yoshi echo tossed around, but I'm not sure if that'd work.
Who would you all like to see as echoes?