in order to continually feed the voraciously hungry Titan era GBs, Titan players will need to seriously crank up their Titan goods production. A quick peek shows quite a few of them levelling up their already high level CFs, and a few of them are also working on their SMBs.
It looks like they are leveraging the recurring quests which is a monotonous and time consuming way of increasing current era refined goods production without having to use space to plant a goods building (and then the problems of unrefined goods productions, etc).
The recurring quests have been nerfed in recent years with the maximum number of 'declined' recurrent quests set at 2000 per day, so the SMB can help a little in reducing the number of 'declines' so in practice can increase production further, assuming there are a few coins buildings in town to collect from, eg. many of the event buildings, checkmate square, etc.