>>90073658Release an album.
Get sponsors.
Be ready to put a lot of work in, and invest some of your money.
...
That's pretty much it? I'm pretty sure everyone can sell out a venue, they can start with smaller one to test the waters. But that's a lot of work, a lot of stress, and you at least want to be a decent singer. The only ones who I see to want a sololive, with potential to get one eventually, are
>Kiara>Bae>IRyS>Nerissa>FWMCGura could get one easily if she only was willing to put the work in, and that's kinda, you know. Mumei is in similar situation, she can sing, is popular, and likes the idol stuff, but she just has weird situation going on.