No way will OAK move on from Gelof and that value is way too low on him. Gorman is LHB and a bad 2B. Caballero is a low ceiling guy with a good glove. Estrada is Caballero with pop, but less control. Ibanez is a cheap replacement, but on the older side. Lopez had one really good season, but hits LH anyway. India is one of the worst fielding 2b in the league.
Aside from India, they'd all be upgrades from what we have in varying degrees. I'm not sure all the teams would be amenable to trades, especially OAK.
I'd rank them:
Gelof (trade Yorke and Drohan)
Estrada
Caballero
Lopez
Ibanez
Gorman (LHB, not a good defender, expensive to obtain)
India