The Magnetic Poetry plugin provides one block.
The Meow Gallery plugin includes one block.
Blocks for functionality provided in the oik plugin are delivered by the oik-blocks plugin.
oik-blocks provides 20 blocks.
Under Construction. This plugin provides 12 blocks.
The TinyMCE Advanced plugin provides one block that replaces the paragraph block.
The Ultimate Addons for Gutenberg plugin delivers 23 blocks in v1.13.6. 23 blocks have been catalogued.
The catalogue for the 21 blocks delivered by Ultimate Blocks is Under Construction.
WooCommerce v3.7 delivers 11 blocks. These are currently being indexed. The catalogue is under construction.
WooCommerce Product Blocks plugin delivers 9 blocks. The index is Under Construction.
WordPress SEO v11.6 delivers two blocks.