Seeen the b60 . Just not sure on release date and price ..... Can't hang about to much my innokin sceptre is about to die .There's this...
https://www.legionofvapers.com/product/bp-mods-ampbb-luxury-edition
You'd need a tank/RBA too though.
...and the soon to be released Lost Vape B60:
https://www.evolutionvaping.co.uk/centaurus-b60-aio-vape-kit-by-lost-vape.html
I can't think of many others with an internal battery tbh.
@ZenAnarchi might be able to help