The solution that is best for you depends on many things - what other features there will be besides just profile pages, what kind of scale you anticipate in the near term, your technical fluency or willingness to partner with a more technical person, etc. CMSs like Wordpress and Drupal are great for certain things, but customizations still take a lot of time and some technical fluency so the total cost/pain of implementation may end up being significantly higher than a custom coding job. It's really easy to stand up a basic and extensible profile page system with a modern framework (e.g. Meteor, Ruby on Rails, Django), so if you have enough technical fluency or are willing to partner with someone who does I generally tend to recommend starting there.