Here are some useful family history reference websites with digital databases. Some are free to search and others might require a subscription or may be available to access remotely for free via your library membership…
Gazettes Online – The London, Edinburgh and Belfast Gazette. Freely available access.
https://www.thegazette.co.uk/
Oxford Dictionary of National Biography – some people can obtain free remote access through their library membership.
https://www.oxforddnb.com/
Historical Directories – digital library of local and trade directories for England and Wales, from the 1760s to the 1910s. Freely available access.
https://specialcollections.le.ac.uk/digital/collection/p16445coll4
Google News Archive – freely available access.
https://news.google.com/
Google Books – a search can sometimes bring up details of an ancestor. Freely available access to some books.
https://books.google.co.uk/
Trove– collections from Australian libraries, universities, museums, galleries and archives. Freely available access.
https://trove.nla.gov.au
