First of all, Harden leaves Philly. Phoenix will try to add depth during this Off Season. On this scenary, they get a decent 3%D on PJ Tucker, a good shooter on Niang and an astonishing 6´9 athlete on Jalen McDaniels (who has already been looked at by the Suns). Phoeniz does not solve their Ayton issue, but they get rid of a Chris Paul who has shown that cannot start main games no more. Philadelphia would use him as PG off the bench, with less importance than what he has in Phoenix. The Sixers gets too Darius Bazley (pretty good PF who has tendency to get injured) and Terrence Ross (out of the rotation in the Suns. He can still put on from 10 to 15 points off the bench). Philadelphia adds to his roster on the Free Agenct Jordan Clarkson, who is a great shot creator that may want to go to a contender franchise rather than stay in Utah with the young core they have created. Clarkson would play as starting SG, so Maxey can play the PG. Philly keeps Tobias Harris contract on this scenary, but, without Harden, he may come back to his 2020/21 version, putting on 20+ points per game.
Philadelphia would start the 2023/24 season with this roster:
PG - Maxey - Paul.
SG - Clarkson - Milton.
SF - Harris - Melton.
PF - Bazley - Ross.
C - Embiid - Reed.