Every single (not counting unnamed folder) canonical fight match up in JJS (Season 1)

Already in JJS / Possible

1. Gojo vs Sukuna (1f)

2. Megumi vs Sukuna (1f)

3. Megumi vs Todo

4. Nanami vs Mahito

5. Yuji vs Mahito

6. Yuji and Nanami vs Mahito

7. Yuji vs Todo

8. Yuji and Todo vs Hanami

9 Gojo hitting Hanami with a stray purple

Missing one combatant / Not possible but could be if one character gets added

1. Yuji vs Finger Bearer

2. Sukuna vs Finger Bearer

3. Gojo vs Jogo

4. Yuji vs Junpei

5. Panda vs Mecha

6. Megumi vs Kamo

7. Megumi and Maki vs Hanami

8. Megumi vs Finger Bearer

Missing multiple combatants / Requires 2 or more characters to be added to become possible / tze please add goat momo

1. Nobara vs Mai

2. Maki vs Miwa

3. Nobara vs Momo

4. Maki vs Mai

5. Megumi, Inumaki and Kamo vs Hanami

6. Gakuganji vs Juzo

7. Yuji and Nobara vs Eso and Kechizo