I just skimmed through the top 50 guys in receiving yards from last season. That's everyone with 884 yards or more. These are the only ones that make any sense at all as a potential target (i.e., didn't just get drafted/UDFA and didn't already transfer to a big time program this cycle):
Jordyn Tyson, Arizona St - This one would be fucking insane. He's getting talked about as a 1st round draft pick for 2026. Originally from Allen, so there's a connection to the state. Has only been in college 3 years (and already transferred once), so is it possible for him to have already graduated? That seems kinda doubtful.
Corey Rucker, Arkansas St - Strange career so far. Did well at Arkansas St for two years, transferred to South Carolina for 2022, did nothing (think he was hurt), transferred back to Arkansas St and tore it up the past two years. Has previously announced that he was skipping the draft and returning to Ark St. Definitely could be a graduate - he's already played 5 years (redshirt + COVID).
Ted Hurst, Georgia State - Actually was in the portal (not a grad transfer?), but there was a report that he pulled out of the portal just yesterday. Was getting interest from big time programs (including aggy), per Google. Something doesn't seem right, here.
Junior Vandeross III, Toledo - Productive for Toledo the last two years, but a 3-year guy like Tyson. Seems pretty unlikely to have already graduated.
Elijah Sarratt, Indiana - Tore it up at FCS St. Francis, then James Madison, then Indiana in 3 successive years. Looking for a 4th program in 4 years?
Antonio Williams, Clemson - 4th year guy out of Clemson, already speculated on in this thread.
Trent Walker, Oregon State - Former walk-on at OSU that blew up in 2024. Doesn't really seem to fit the profile very well.
Giles Jackson, Washington - I'm about 98% sure that this guy is out of eligibility and declared for the draft, but I can't find any record of him signing as an UDFA at the moment
Of course, there are helluva lot of really promising WR that had <884 yards last year, so this is kinda a pointless exercise.