Firstly, if you have a good pc then use "Faraday.dev ' here you can make anything you want and download other characters, and no need for WIFI since it's running on your pc.
If you don't have a good pc then you can try and use "Poe.com" and use the modules that they have like "solar-0-70 b", not all modules in there can be jailbroken.
And here is more sites that i found that can work good:
-------------
Faraday.device
novelai.net
play.aidungeon.com