The most interesting scenarios would certainly be where there are players coming off the roster as well as on it. And I'd include Haseley and Moniak and (less likely) Kingery as potential trade chips (not big ones, but certainly the first two guys are still more valuable than A ball lottery tickets).
But it's easier said than done, not only in terms of match-ups but also improving the team. You could trade Hector or VV while also trying to acquire a closer and a 4th starter, but it would still be better to keep them and do that (thus making Hector lower-leverage and Vince our #5).
The Simmons/trade Hoskins/Bohm to 1B idea is nice in theory, but probably a net loss in terms of WAR this season (adding defense but subtracting offense). And probably still better to deal Hoskins in the off-season (while hoping he has another good stretch in him this season).
This is assuming they still try to win this year. Otherwise it's pretty easy - trade Cutch, trade Hector, trade Miller. Not sure about Herrera and don't think Didi and Segura can be moved easily (either return will be too low or Phillies will be putting more money than they are willing to put in).