Types of Blocks

WordPress provides various block categories to build rich content layouts
text_fields

Text Blocks

format_align_left
Paragraph
title
Heading
format_list_bulleted
List
format_quote
Quote
table_chart
Table
image

Media Blocks

image
Image
videocam
Video
music_note
Audio
collections
Gallery
panorama
Cover
dashboard

Design Blocks

smart_button
Buttons
view_column
Columns
folder
Group
horizontal_rule
Separator
space_bar
Spacer
widgets

Widgets

archive
Archives
calendar_today
Calendar
category
Categories
article
Latest Posts
search
Search
brush

Theme Blocks

language
Site Logo
title
Site Title
menu
Navigation
person
Author
comment
Comments
embed

Embeds

play_circle
YouTube
tag
Twitter
videocam
Vimeo
music_note
Spotify
photo_camera
Instagram
info
Each block has specific settings and can be combined to create complex layouts. New blocks are regularly added with WordPress updates and through plugins.