Block list

Below is a sample list of blocks available for editing with wp.blocks.registerBlockStyle.

All the following blocks needs to be prefixed with core/:

'core/archives'
'core/audio'
'core/button'
'core/calendar'
'core/categories' 
'core/code'
'core/column' - A single column within a columns block 
'core/columns' - The columns wrapper
'core/cover'
'core/file'
'core/freeform' - Classic editor
'core/gallery'
'core/heading'
'core/html'
'core/image'
'core/latest-comments'
'core/latest-posts'
'core/list' 
'core/media-text'
'core/more'
'core/nextpage' - The page break
'core/paragraph'
'core/preformatted'
'core/pullquote'
'core/quote'
'core/rss'
'core/search'
'core/separator'
'core/shortcode'
'core/spacer'
'core/tag-cloud'
'core/table'
'core/verse'
'core/video'

Note that the embed blocks are exceptions. Prepare yourself for a long list:

'core/embed'
'core-embed/wordpress' 
'core-embed/spotify'
'core-embed/twitter'
'core-embed/youtube'
'core-embed/facebook'
'core-embed/instagram'
'core-embed/soundcloud'
'core-embed/flickr'
'core-embed/vimeo'
'core-embed/amazon-kindle' 
'core-embed/animoto'
'core-embed/cloudup'
'core-embed/collegehumor'
'core-embed/crowdsignal'
'core-embed/dailymotion'
'core-embed/hulu'
'core-embed/imgur'
'core-embed/issuu'
'core-embed/kickstarter'
'core-embed/meetup-com'
'core-embed/mixcloud'
'core-embed/reddit'
'core-embed/reverbnation'
'core-embed/screencast'
'core-embed/scribd'
'core-embed/slideshare'
'core-embed/smugmug'
'core-embed/speaker-deck'
'core-embed/ted'
'core-embed/tumblr'
'core-embed/videopress'
'core-embed/wordpress-tv'