Need Advertising Advice For POD

I've been in POD for a while now and was doing very well with FB traffic. FB prices are pretty much through the roof and it's highly saturated with POD ads. I just got on google shopping and am waiting for ads to start running. I was wondering if any of you marketing gurus out there could advise me on some other networks or ideas for advertising. Mainly the Military/Patriotic type of POD designs. Would really appreciate some ideas.