Help ?Do you know frum men in their 40s-50s who live in the US

[אסתי ק. [קראנצ'ית]]

I need to advertise something in the US
My target audience is frum men
Mostly Litvish
+At the age of 40-50
I am Trying to do some market research
,and I would like to know where is the most effective place to advertise in order to reach them
Newspapers, social networks, local newspapers, wotsup groops
!Thanks​

 

[P.S.]

I'm not familiar enough, but if you're trying to target the more yeshivesh type I would say either the local weekly newspapers such as The Lakewood Shopper, or the yeshivesh news websites, like Yeshiva Would News, or The Lakewood Scoop