Question: how to farm mgp ffxiv?
Answer: Challenge log every week, slow and steady, is the sanest way. If you want more than that, then go do botany minigame until you get bored. Make sure to do cactpot every day and GATEs whenever you catch them up. Chocobo racing is the best way to get tons of MGP, but it's only rewarding if you're in for the long haul.