I don't know what you have but I'd consider seeing what you can do to get a light-heavy 25x or higher team, especially if you can bring a lot of TPA to bear.
If I could have any team in the world I wanted:
* Leader: L/L Ra
* Leader: L/G Sakuya
* L/W Apollo
* L/D Venus (or Zeus and Hera, or Hera-Sowilo)
* L/R Kali
* Izanagi
(Alternatively, sub Sakuya and use Kali as one of the leaders. It doesn't make much difference.) This would enable a 96x burst by using Izanagi and matching all five colors plus heal, and that's after 20% gravity (or 56% if you use Zeus and Hera but I think Change the World is possibly more useful here), and that's not counting enhanced orbs or TPA.
More realistically, something Ginny could build:
* Leader: L/G Sakuya
* Leader: L/G Sakuya
* L/W Apollo
* L/R Kali
* L/D Lucifer
* Athena
(Lucifer and Athena are of course optional but they both have 2xTPA and high ATK, and Athena has a useful active. Chibi-Valkyrie would be a useful substitution for Lucifer.) If you fire off both Sakuyas' actives, that triggers the leader bonuses for a total of a 36x burst after 36% gravity, again not counting enhanced orbs or TPA.
Mega Man: The Light of Will (Mega Man / Green Lantern crossover: In the lead-up to the events of Mega Man 2, Dr. Wily has discovered emotional light technology. How will his creations change how humankind thinks about artificial intelligence? Sadly abandoned. Sufficient Velocity x-post)
Games by Coda (updated 11/24/2019 - New game: Jigsawmino)
Art by Coda (updated 4/20/2020 - untitled original music)