In no particular order, although an order may make sense, such as starting with extensions that are ONLY deployed on wikidata.org itself and wouldn't break clients if something went wrong.
- wikibase/wikibase
- wikibase/quality
- wikibase/constraints
- mediawiki/article-placeholder
- propertysuggester/propertysuggester
- wikibase/wikimedia-badges
- wikibase/Wikidata.org