Something that could work in theory and have to wait till Bufkin clears:
Clippers: Harden 36M (outgoing Covington + Mann + Batum 33M)
Hawks: Siakam + Covington 50M (outgoing Bogdanovic + Hunter + Bufkin + Johnson 47M)
Mavs: Capela 20M (outgoing THJ 18M)
76ers: THJ + Bogdanovic 37M (outgoing Harden 36M)
Raptors: Hunter + Mann + Bufkin (after the 30 days) + Johnson + Batum 49M (outgoing Siakam + Young + OPJ 52M)
Spurs dumpster: Young + OPJ 14M
Now I let you figure out who gives picks to whom here, specifically the Spurs. I assume the Sixers would ask for a pick(s), too. Mavs, Hawks, Clippers and Raptors are probably fine.
Clippers: Harden 36M (outgoing Covington + Mann + Batum 33M)
Hawks: Siakam + Covington 50M (outgoing Bogdanovic + Hunter + Bufkin + Johnson 47M)
Mavs: Capela 20M (outgoing THJ 18M)
76ers: THJ + Bogdanovic 37M (outgoing Harden 36M)
Raptors: Hunter + Mann + Bufkin (after the 30 days) + Johnson + Batum 49M (outgoing Siakam + Young + OPJ 52M)
Spurs dumpster: Young + OPJ 14M
Now I let you figure out who gives picks to whom here, specifically the Spurs. I assume the Sixers would ask for a pick(s), too. Mavs, Hawks, Clippers and Raptors are probably fine.