Brand Building - B2B Audience - Looking for some low-cost ideas

Have you done online brand building on show string budget? May be FB or Insta or other platforms.

Geography: US (Mainly East Cost)
Gender: M & F
Age: 35 to 55 years
Position: Managers, VP, CEO, Owners
Industry: Technology

I need to run a small campaign to build a use case for my manager.

Thanks

Digital marketing agency in darbhanga