Amazon FBM – Print on Demand Drop Shipping

This is my first time posting in the group, so I hope my approach is correct.

I sell on Amazon in the MerchByAmazon space. I have been doing that for a few years and it is going pretty well.

I tried my hand at FBA a few years back and it wasn’t a good fit for me.

I also sell print-on-demand products on Etsy and am considering moving back into Seller Central with FBM to expand my Amazon product line beyond apparel.

Does anyone have any experience using Print on Demand via FBM through vendors like Printify or Printful? Do you have any advice?

Looking at competitive niches on Amazon, I do not see how there is much of a margin when you consider production and shipping costs per item.

Can anyone offer any advice or resources that may help?

Thanks in advance.