The Raptors Acquire Myles Turner and Cam Reddish, then resign Lowry, Trent Jr, and Birch.

Myles Turner: Turner is most likely the best Center for the Raptors to target. He fits perfectly into the Raptors defensive-minded system. He would allow the Raptors to run a true two-way floor-spacing big man alongside Trent Jr, OG, and Siakam. He is also 25 years old, so he fits into the Raptors timeline.

Cam Reddish: Cam Reddish is also another player that fits into the Raptors system perfectly. He can play the backup SF position, which is needed because Bembry, Watson, and Hood haven't been good for them.

Gary Trent Jr: Signing Gary Trent Jr is a priority for the Raptors. He can develop into a consistent scoring option, and Nurse can help him be more consistent on the defensive side of the ball.

Kyle Lowry: The Raptors must resign Kyle Lowry at all cost. He is so important to the success of the Raptors organization and a big part of their culture.

Khem Birch: Birch has proved to be an agile and great rim-protector for the Raptors.*

Kris Dunn: Payton's offense is limited, but he brings legit defense to the backup PG position.

The Raptors can run a starting lineup of:

Kyle Lowry - Fred VanVleet - OG Anunoby - Pascal Siakam - Myles Turner

With this bench:

Elfrid Payton - Gary Trent Jr - Cam Reddish - Yuta Watanabe - Khem Birch

The Raptors would have some nice depth and build a future contending team.