Auto-size dynamic text paragraph to fill fixed size container

[Colorhues]

Is there any solution for auto resize paragraph text box fill in a fixed area or a container.

[Colorhues]

In aftereffects

[Adam24585301qycn]

yes, will it always be a multilined paragraph, so if you want it to fill an area based on height or width, whatever comes first ?

and do you want the paragraph to be vertically centered in this area ?

[ShiveringCactus]

Is this the sort of thing you're after: