I think I read somewhere that spaCy was going to have named entity disambiguation at some point, with named entities having links to knowledge bases like Wikidata or DBpedia. That’s something that paid NER services but that I haven’t found in open source libs, and would be really interesting IMO.
There's a component for Entity Linking available in spaCy, but you have to train it yourself, as the use-cases (type of entities, type of knowledge base etc) can vary greatly. See more here: https://spacy.io/api/entitylinker
