Pillar was actually the first name that popped into my head, however I looked up his offensive numbers and they aren't great. Still an upgrade tho. In all seriousness I would gauge Adam Jones. Not great defensively and not having his best offensive year with free agency pending. There probably aren't a ton of great names out there. The best one would probably be Starling Marte but that's probably too pricey
I thought Jones while we were playing them, but then he was quoted as saying when asked if was to be traded and he said, "10/5" meaning he chooses where he goes. Would he even consider Seattle?
Pillar is about defense and speed. I would take that at the right price.
Marte would cost us more than we probably have though his suspension from last year should drive the price down. You are taking a chance at a year suspension I believe.