Dresses for someone without a bust

So I've had top surgery and therefore my chest is totally flat, and I don't generally want to make it look like I do have a bust. I like dresses, though, and I'm trying to figure out what will look good on me.

When I try to google, I get advice for if you have a small bust, with the assumption you want to make an hourglass figure, which I don't usually want. So I come to y'all.

I like how I look in a dress like this, which is pretty shapeless. Dresses that have bunched elastic over the bust also work well for me (I don't know what the term is for that kind of construction).

For those 2 kinds of dresses, what's the terms for them? And what else should I be looking for in terms of dresses that might look good? And for dresses constructed with that extra fabric in the bust area, is there any way I can make them work when I have nothing to fill it out? Or should I just avoid them?

(I also like to knit and am considering trying to make a dress so knowing the design terms are helpful).

And if there's somewhere else where I should be asking this, lemme know, thanks.