What are some alternatives?
When comparing Instafeed.Js and Smash Balloon, you can also consider the following products
Behold.so - Easy Instagram feeds for busy devs
Elfsight - Upgrade your website without coding.
SociableKIT - SociableKIT is a website plugin that will help you display social media contents on your website. It allows you to customize the look & feel of your social media contents and display them on your website automatically.
The SEO Framework - Easy SEO for beginners, an awesome API for experts. WordPress SEO for everyone.
Walls.io - Walls.io is an easy-to-use social wall that allows you to collect, curate and display content from multiple social media platforms such as Facebook, Twitter, Instagram, Youtube, Vimeo, Vkontakte, Pinterest and others.
Gravity Forms - Gravity Forms is one of the best and easiest contact form plugins to create modern forms for websites powered by widely-used WordPress.