I'm going to list characters that are NOT "good for your hands" since I think they're fewer than those who are "good for your hands".
Fox
Falco
Wolf
Ness
Lucas
Yoshi (double Jump shenanigans requires lots of button presses)
Lucario
Samus (I find it difficult to missile spam with platforms, tight timing as well as being a core tech for Samus) but otherwise she doesn't require that much button presses/difficult executions.
Mewtwo (If you want to play optimally I think you should have R or L to jump or claw, heard Emukiller said that, and different control schemes can be messy imo)
Squirtle (some moves such as sling jumping, Tacus and hydroplaning requires good timing and difficult inputs)
I decided to list some characters that requires little or medium button presses, not that bad for your hands, anyways:
All characters that relies on spacing/zooning or camping such as:
Marth, Roy, Ike
Ivysaur
Wario
Jiggs
G&W
Link, Toon Link
Combo characters that do not requires lots of button presses such as:
Captain Falcon (some movement techs such as Hax dash requires precise execution)
ZSS
Kirby
Mario, Luigi
Meta Knight
Pit
Pikachu (Quick Attack Cancel might be tough but idk)
Heavy Hit Characters (however these might be tough playing at higher level and requires more from your hands with all the wavelands and other stuff):
Bowser
Ganondorf
Dedede
Tricky Characters, even though these might not rely on lots of button presses and tight execution, you might need to learn some character unique stuff in order to play these characters well:
Snake (Professor Pro himself said that he like the contrast between his Fox and his Snake, and that Snake was more of a character which you use his tricks and setups to win rather than a lot of button-pressing). Still some techs requires good timing and execution such as Dacus, B-reversals, Footstools.
Olimar
Ice Climbers (requires good timing for desyncs however, not necessarily lots of button presses)
Zelda