Don't use dash attacks as your approach period.
Depends on the character. Sheik and Rosalina can viably do it, for example. Sheik because she pops her body outward and recovers quickly, and Rosalina because Luma can be spaced away from her to make it have ridiculous range. Rosalina's dash attack also has very high priority, it goes right through or clanks with most attacks.