Using plugins in after-effects is the best way to create a project in very effective Way and using plugins can save you more time to create more project in a short period but plugins in after effect is very expensive for new motion graphics artist but there are also some few free plugins that can save more time that why I put together 10 after effect free plugins every motion graphics designer must have
Saber is free after effects plugin from video Copilot That can help you to create a neon, fire and energy light This plugin has many preset to choose from and is free for window and mac users
Animation composer a free animation plugins for after effects that made by Mister Horse this extension have some free amazing tools like Anchor point mover and other tools this tools have also collection of Text and Motion Presets you can purchase on their website.
AEjuice is free plugin that comes with many free Presets to choose from Like Starter Pack contains 100+ assets for your projects,Motion Cafe UI HUD Package,My Media (preview files on your computer ,Slides – Beginner Collection helps you create a slideshow under 2 minutes. Shifter ,Font Previewer and sound effects if you want more advanced presets you can purchase on their product page.