Cosmos for me too. Last summer I direct sowed some that were an antique rose color, and also some yellow ones. They just had time to bloom, but not enough to ripen seed, so I'll start them inside next year.
Also sunflowers, of course.
New to me this year were fleabane, (
Erigeron )picked up at the little local nursery.
I don't know which variety it was, but it was a good stuffer for containers, as it's spindly little stems threaded easily through the other plants and the little daisy heads popped out among the other blooms. I thought it was charming, but I found out later in the season that my client absolutely loathed it. Not so much the ones in the pots, but I had a couple of flats of them left and stuffed them in the borders also. I found several of those pulled out and lying on the ground. I blamed the deer, and stuffed them back in the ground.
Why she didn't let me know her dislike for them is a mystery. All she had to do was mention it once and I would have cleared them out (and adopted them for my beds). But it wasn't until they were ready to leave in the fall that she clued me in. Now that I know,

I'll just buy them for my own gardens next year.