Multiverse Stories (Multicross: DC, DXD, Marvel, ETC,)

Hey guys I have been thinking of continuing the gamer fic snippet For Want Of Life And Property but I am struggling to think of a universe to use. So give me your recommendations.

The Current Ideas:

1. DXD

2. DC (Comics Or DCAU Or YJ)

3. Marvel (MCU Or Comics)

4. Isekai Worlds

5. Shinmai Maou No Testament

6. Fairy Tail

7. JJK (YOU ARE MY SPECIAL!)

8.???