Looking at the rental reliever market, there is decent depth there. I think you could grab a long relief, and then a couple of 7th inning types like sewald and have a better pen.
Also, looking at the starting pitching... unless you are getting joe ryan or degrom, there are a lot of guys that aren't that great. Like more third playoff starter judged by their stuff numbers and underlying stuff. Like Lugo for example. I'd prefer scherzer and gausman start playoff games over him.
Would there be anything to paying a steepish price for someone like griffin jax who has nasty stuff. Then have him, hoffman, and garcia for leverage. Then guys like sewald, little, fisher, rodriquez down a rung, then long relief (i like milner from texas).
Then, you can run openers in front of berrios and maybe bauer? And also sign one back end starter. Basically make the deadline priority a drastically better pen.
The dodgers also have pitching injured. If they have guys coming back, you could grab one of their young guys with options. That would be expensive.
One reliever with options and nasty stuff is Holderman. Nasty stuff but bad control. Stick him in triple A and work on it and see if he can help when rosters expand.
An interesting guy for next year is dustin may. His stuff numbers have completely fallen off in his walk year. But, i'd do a speculative free agent signing on him.
My favourite for starting pitching at the deadline is still severino. I'm kind of unsure we would want that contract maybe.