Disney has "mini" parades throughout the parks each day with characters. You can also see characters from a far. They are on the upper level of the train station at various times. These times are not posted, so crowds don't form.
There are character meals going on now, with characters observing the 6 ft social distance rule.
No autographs . You can take pictures but you must abide by the 6 ft social distancing and mask requirements. There is no chance of getting close to the characters.