Teysa + Painter's servant replacement
No, there is no such replacement for Painter's Servant.

There are some permanent cards that change the colors of all creatures, such as Shifting Sky or Darkest Hour, but none of them add colors to creatures, they all replace them with a single color.

With Sleight of Mind or similar cards you could replace all of occurences of "black" on Teysa with "white" or vice versa. That would allow that specific Teysa to do the combo with any 3 white (or black) creatures. However, with all such cards being blue, they would be outside of your commander's color identity and thus not legal for a Commander deck.

For future reference, under http://gatherer.wizards.com you will find the Oracle database, the official and searchable MtG card database.