1.Gordon Hayward-This is a top target for the Celtics because he is great scorer at all levels of the court and can defend solid too. Another reason he would go there is that is he old college coach team (Brad Stevens) which would a be factor in him going to help compete for a title.
2. Blake Griffin- Blake Griffin would be another target for the Boston Celtics in free agency because of they need another superstar to compete to with the Cavaliers and he is an elite player that could put them over the top if he stays healthy
3. Paul Millsap- Millsap is a top free agent and has a great overall game and is a underrated player in the NBA and he also played with Al Horford in Atlanta and might want to go do that again which would kind of make sense.