This will evolve and I'd expect that the recruiting profile aggregators like 247, etc. will expand their profiling efforts to track and update players profiles more diligently post-LOI and arrival at a school on the assumption that they may be in the portal in a year or two.
They will develop and package with a searchable UI and algorithmic targeting tools and sell subscriptions to school athletic programs. There will be a module specifically focused on portal players research and targeting.
They will likely offer custom research and targeting services to schools that don't have the internal resources to devote to this themselves, as well.
More data all the time is where we humans are heading... and the expanding transfer portal is a perfect use case for it.