Breastfeeding prep

Addy
What did yall start eating or doing during pregnancy that helped with milk production? I know oatmeal is a big one, but what else? I would very much so like to breastfeed, and just want to make sure I'm doing whatever I may be able to do in my power to ensure I'll have a good steady flow. I understand sometimes, some women just can't. But I would very much so appreciate any tips or ideas to try :) I'm 18 weeks, but figure it takes a while for a routine to stick!!