Competitor Instagram Followers

Hi,

I have a list of around 90,000 IG profiles from my biggest competitor.

What are the ways I can possibly use this data, examples:

1) Use a tool to follow and then unfollow these people (Any recommendations)
2) Create a strategy to outreach to those with the largest followings/engagement
3) Someone mentioned its possible to scape emails and then use these to create an audience on Meta.

Any other suggestions or thoughts?

There use to be a program, Im actually trying to go through my old email and find the name of it, but it would allow you to do a bunch of social actions automated, set diff action timers, pauses, etc. You could scrape with it or import a list for it to apply actions to. I paid monthly for it I remember and then IG changed something that blocked them, they closed down publicly but... some of us still had access. Having a brain fart rn.

Found it, was called "Jarvee" I guess there is something new called "SuSocial" as well