Kirby's grab range is pretty bad. As a character design element for him though, I think it'd be cool if they buffed his grab game because some of his throws are already based off of Suplex Kirby.
I threw together a tier list so we can actually "speculate"
I'm 100% certain DK is in the wrong spot but I'm too tired to know where I should put him. C tier and A tier feel messy. Ordered left to right but what do any of us know about what an actual list looks like at this point in time.
We're kind of High tiers, Giant Middle tier soup and Low tiers atm. Discuss.
I'd change a few things here personally. Granted, I don't have experience with every MU, but I feel like Sheik is certainly S tier level for one. She's probably the best secondary right now in my opinion because of her neutral -> positive MU spread against the majority of the cast and lower technical skill required, making a switch to her in the middle of a set pretty easy.
Second, I think Lucas could fall down a tier; I'm no expert on him but in my limited experience with him I found his small hitboxes and amount of space he covers with his aerials, dash dance, and normals disappointing. I could be very wrong about him.
Zelda is probably a low tier in my opinion. Her neutral relies generally on the opponent approaching unsafely. Zelda's mobility isn't that great so to play defence you basically have dsmash, wavedash back fsmash, farore's wind, and fairs, with other stuff coming in handy in certain situations, like her neutral b (forget the name right now).
I'm pretty sure DK is better than Kirby but I might be missing something. Zard has a lot of problems; I could go into it further but I think he should be maybe a little bit more to the right of that tier. I probably shouldn't fuss about that too much though.
EDIT: I'd also consider moving Sonic up a tier. His Matchups against the upper tiers are pretty good. Loses slightly to MK, Diddy he wins slightly (no experience here, just recalling this one), pretty even against Wolf, loses slightly to Fox, even with Sheik. Pretty even with Samus, Falco, Mario, Falcon is a slight win, loses to Marth, Roy isn't bad. Lucario isn't bad either in my experience.