Llumys
Smash Champion
Here's a little contribution. This is a list of possible movements that can be done after a short hop. I left out a few things like nairs without hitboxes and aerial pluck attempts. Also, for those who don't know, PACS stands for Pikmin Aerial Cancel Shuffle, which is auto-canceling an aerial to arrange your line. Keep in mind that Olimar's autocancelled aerials don't have hitboxes.
1. nair
> jump
> air dodge
> fair (PACS)
> bair (PACS)
> dair (PACS)
> uair (PACS)
> toss
> chain
> whistle
2. fair
> jump
> air dodge
> fair (PACS)
> bair (PACS)
> dair (PACS)
> uair (PACS)
> toss
> chain
> whistle
3. bair
> n/a
4. dair
> n/a
5. uair
> jump
> air dodge
> nair
> fair
> fair (PACS)
> bair
> bair (PACS)
> dair
> dair (PACS)
> uair
> uair (PACS)
6. toss
> jump
> air dodge
> nair
> fair
> fair (PACS)
> bair
> bair (PACS)
> dair
> dair (PACS)
> uair
> uair (PACS)
> toss
> chain
> whistle
7. whistle
> jump
> air dodge
> nair
> fair
> fair (PACS)
> bair
> bair (PACS)
> dair
> dair (PACS)
> uair
> uair (PACS)
> toss
> chain
> whistle
>> whistle > jump
>> whistle > air dodge
>> whistle > fair (PACS)
>> whistle > bair (PACS)
>> whistle > dair (PACS)
>> whilstle > uair (PACS)
>> whistle > toss
>> whistle > chain
>> whistle > whistle
8. chain
> n/a
9. air dodge
> jump
> air dodge
> nair
> fair
> fair (PACS)
> bair (PACS)
> dair (PACS)
> uair (PACS)
> toss
> chain
> whistle
1. nair
> jump
> air dodge
> fair (PACS)
> bair (PACS)
> dair (PACS)
> uair (PACS)
> toss
> chain
> whistle
2. fair
> jump
> air dodge
> fair (PACS)
> bair (PACS)
> dair (PACS)
> uair (PACS)
> toss
> chain
> whistle
3. bair
> n/a
4. dair
> n/a
5. uair
> jump
> air dodge
> nair
> fair
> fair (PACS)
> bair
> bair (PACS)
> dair
> dair (PACS)
> uair
> uair (PACS)
6. toss
> jump
> air dodge
> nair
> fair
> fair (PACS)
> bair
> bair (PACS)
> dair
> dair (PACS)
> uair
> uair (PACS)
> toss
> chain
> whistle
7. whistle
> jump
> air dodge
> nair
> fair
> fair (PACS)
> bair
> bair (PACS)
> dair
> dair (PACS)
> uair
> uair (PACS)
> toss
> chain
> whistle
>> whistle > jump
>> whistle > air dodge
>> whistle > fair (PACS)
>> whistle > bair (PACS)
>> whistle > dair (PACS)
>> whilstle > uair (PACS)
>> whistle > toss
>> whistle > chain
>> whistle > whistle
8. chain
> n/a
9. air dodge
> jump
> air dodge
> nair
> fair
> fair (PACS)
> bair (PACS)
> dair (PACS)
> uair (PACS)
> toss
> chain
> whistle