Whose backstory do you want to know the most?

[MondoCool]

Definitely Dr. Maki Gero backstory... I think he is one of the most interesting characters that I would like to see in a OVA, the premise would be amazing

I've never once thought about a Gero backstory (and I've spend a LOT of time thinking about stuff like this) and after seeing it laid out, it could potentially be incredible

[Gog]

King cold's... Think about the potential for a story like king cold's, the birth of the Planet Trade Organization, potentially seeing the arcosians, maybe even a baby Freeza.

You could literally do anything with such a back story as nobody knows anything about them.

[Grimlock]

Multiverse/Megaverse, Saiyans (everything, even the legends), Zeno, Daishinkan, Kaios/Kaioshins, Makaios/Makaioshins, Hakaishins and angels.

[Almighty Majin]

King Cold, Freeza, and their entire army
The ancient Saiyan history and legends such as the Original Super Super Saiyans, the Evil Saiyans, and Original Super Saiyan God as well as the destruction of U7 Planet Salad
The backstory of Beerus before becoming God of Destruction

[GodKaio-Ken]

King cold's... Think about the potential for a story like king cold's, the birth of the Planet Trade Organization, potentially seeing the arcosians, maybe even a baby Freeza.

You could literally do anything with such a back story as nobody knows anything about them.

The PTO isnt an actual thing. Its a line added to the dub I'm 99.9% sure.

By name at the very least.