It sounds like what you’re looking for is a file / metadata tagger that can perform acoustic fingerprinting across an untagged set of audio files.
Take a look at Musicbrains Picard which uses AcousticID, along with track count and length, in an attempt to identify and tag your music files.
For a local music collection it makes sense to do this off-line, in advance, rather than at the point you play music. That way you have the info before you pick a track or album to play.
If you want further control there are apps like mp3tag that allow you to further match and adjust your metadata tags.
Once metadata tags have been applied to your files Roon can use those tags to pull in further information based on them like biographies, images and reviews.
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One area where real time ‘Shazam Like’ acoustic track identification might be useful in Roon is when listening to live radio or non-album content like downloaded podcasts and mixes from Soundcloud/Mixcloud.