MLB trade deadline is July 30
Barring a massive turnaround, i'd imagine the candidates to go are Hand, Hudson, Scherzer, Schwarber, Castro, and Bell. I don't see us trading Turner, not with another year left and management likely wanting to keep him as a cornerstone going forward.
Add Harrison if he can rebound a little. Even now he’s definitely worth more than Castro due to better numbers and positional versatility.