CRI90+ fluoro tubes are/were available but very much a specialist item... for studios, retail displays, aquariums etc. Your average tube from the hardware store is more like CRI50-60, definitely dreadful.
And a further caution - the "CRI" rating is not necessarily a reliable measure of how suitable a light source is for digitizing film.
Our eyes/visual systems and digital sensors have important differences. A high CRI means that the light source will cause the colours of things to look good to human visual systems. It does not necessarily mean that the light source will cause the colours of things to render accurately on film or on digital sensors.
there are lighting standards that will give accurate indications about colour response in film and digital. You would be most likely to find people referencing those standards in the motion picture film industry, and the lights that are sold with those standards specified are likely way above most of our budgets.
High CRI doesn't hurt, and may coincidentally be found on light sources that do respond well when used for digitization, but it is also possible that a high CRI source has spectral discontinuities that create problems with the sensor you are employing.
