Impossible to say who is available, but my general thoughts are:
I like Lopez over Ryan simply on the lower cost.
I'd would target the Reds pitching staff. They have a ton of talent, are in win-now mode, and seem able to make trades. I like the Pitt rotation, but they don't seem to be able to trade.
On the Cincy side, I like Greene and Burns and would pay a fair amount for them. I like Abbott and Lodolo, but at a lower cost. If push came to shove, I'd like to take a flyer on Petty. He's pitched badly, but he is still a kid, but occasionally teams look to move guys early than to wait for possibly worse results.
And I'd ask Miami about Alcantara, just like everyone else.