The Chartered Institute of Fundraising have gathered together a number of technologies and tools that can help to improve the supporter experience, in a free paper available at https://ciof.org.uk/events-and-training/resources/technology-and-tools-for-improving-the-supporter-e (yes the URL is truncated)
As well as the expected CRM and email marketing technologies, there are some other interesting tools for listening, real-time interaction management.
Why not take a look and see which might be relevant for you?