Single Purpose Blocks do one thing only, but that very well. Some are very specific in their focus, and some extend existing blocks with many more settings and configurations. Sometimes, the still provide multiple blocks to built things.
360 Image
360 Video
Accordion Block
Block Gallery – Photo Gallery Gutenberg Blocks
Coming Soon & Maintenance Mode
Conditional Blocks
Events Calendar Shortcode & Block
FAQ Blocks
FooGallery
Footnotes made easy
Gosign – Masonry Post Block
GT3 Photo & Video Gallery Block
Guten Post Layouts
Illustrations Block
Info Blocks
Logo Carousel block
“This plugin was closed on May 23, 2019 and is no longer available for download.”
Listicles
MathML Block
Meow Gallery Block
Organic Profile Block
PDF Viewer
Pop-Up Block
Post Layouts
Pricing Table Block
“This plugin was closed on April 16, 2019 and is no longer available for download.”
Recipe Card Blocks
Simple Code Block
Social Share Buttons
Timeline Blocks
WordPress Download Manager
WPSeed Container Block
Video and Image Slider
Photo by Jesse Collins on Unsplash