Lets assume for the moment that Gutekunst/LaFleur decide to roll with Sternberger, Tonyan and a blocking TE, Lewis or a reasonable facsimile. While perhaps not preferable, it is the more likely scenario.
In that case, and assuming a WR is not aquired in free agency, a strong possibility at #30 would be Laviska Shenault.
You must be logged in to see this image or video!
This is a big, physical player with a lot of versatility. He played wide, slot, H-back and ran out of wildcat. Runs the jet sweep. He's the kind of player that would allow LaFleur to install more of his stuff.
He's quicker than he is fast, has giddyup through 3rd. gear but doesn't show great long speed. He looks like he'll clock around 4.50, good enough to not be slotted as just a possession receiver. I would expect his cone and shuttle to impress more than the 40 time. Built like a running back with a big catch radius. Looks like a guy who can get YAC at the next level with a knack for finding space after the catch when he isn't running over a DB. He the kind of player that gets DBs making business decisions.
He's a good character guy by all accounts.
His medicals are a question mark, playing last year following a torn labrum. He missed some time and his quarterbacking was questionable, thus the decline in productivity from his team MVP year in 2018. There seems to be some debate about the quality of his route running and a limited route tree in college. I don't pick that up in the highlights, but it could be a question mark.
All in all, this is the Deebo Samuel comparable in this draft.
Superficially, Chase Claypool would appear to fall into the same type, the big, physical WR, a guy who slots further down the draft. To my eye he looks more like an undersized slot TE. To my eye he lacks the speed to play outside. I'll reserve judgement until we see how he tests.