Summer cover-up ideas for short frame and larger bust?

[Cydonia]

Hi, I’m trying to find some kind of summer cover up to throw on over a t shirt or dress when it’s not as warm as it looks!
I struggle with cardigans as I have a large bust so they usually gape if fastened or slide off my shoulders if not.
I’m also short so anything long in the body ( most jersey blazers I have seen ) or remotely oversized looks ridiculous.
So basically looking for something fitted, but not too fitted in order to accommodate boobs, shortish length but not denim as want to wear with jeans. Maybe a shirt boxy kind of shape might work instead of tailored? I’m not a particularly smart person in general!

I’ve got a short unlined cropped tench style jacket from Zara, it seems to go with everything. The sleeves are not too wide, so don’t add bulk, it’s got a collar so I feel ‘finished off’ and it drapes, I’ll see if I can see one on Vinted to give you an idea

Like this…
Oh and it has pockets

Ooh thank you, that looks perfect! Never normally shop at Zara, I’ll have to have a look.