Question

Danielle and sabrina _____ to the park each saturday.come comes

Answer 1

Danielle and Sabrina come to the park each Saturday.

Answer 2

The correct word would be come.

If there were just one name for example 'Danielle comes to the park each Saturday' it would be proper.  But since there is two names 'come' sounds the best.  

To be sure, read the passage with both options.