There are many ways to promote your Instagram posts; however, most of them come under two categories--Black hat methods and White hat methods.
Black hat means illegal ways to promote your photos or account such as fake likes, sending bots, and other bad ways that would lead to your account ban.
On the other hand, white hat methods are effective ways to promote your content/pic/posts/account such as creating Instagram/Facebook ads, shout-outs from influencers or big profiles, sharing in different platforms, and so on.
All these White hat methods are effective and help you reach the wider audience.
However, not everyone can do this effectively. One needs to know how to create a successful campaign. This service is all about reaching a wider audience and growing exposure.
What I will do?
Share one post on different channels and platforms to gain exposure and reach a wider audience
Feel free to ask if you are skeptical about anything!