TestFlight for showcasing sample app for portfolio

Situation - I am putting together a project to use for showcasing full stack skills for my portfolio. The plan is to build my back end services on AWS and I want to showcase native mobile development skills on iOS. It would represent a fictitious company so not a good fit for App Store. What would be the best way to put this iOS App in the hands of a handful of people to review? Could I use TestFlight for something like this to grant access as needed to my App (probably no more than 10 people will ever try this app)? Thanks for any advice.