Seats swap

I know this is a recurring topic, and there are a few posts about it, but no solutions at all.

I have been thinking on changing my front seats, which are basic fabric ones, with something with better side support (I don't want to slide out of the seat when I take a hard turn).

I know than other Aveo seats would fit in my Kalos (even T300), but I don't know if those seats are better than the ones in my car.

Chevrolet Lacetti ones seems to fit in the same way than the Aveo ones, but I'm not sure if the holes placement is exactly the same, or if the distance between them is wider...

Does anyone have some info about Epica/Cruze seats? Would those be compatible with the Kalos/Aveo without modification?

Are there any OEM "sporty" seats than i have missed?