Yeah wonder how we'd go about targeting signings if we go down.
Smart approach would probably be to target some of the best upcoming talents at current Champ clubs that would soon be making the leap to the Prem anyway: the Olise, Eze, Wharton, Bowen equivalents. We've often lamented missing out on these players and now we can offer them guaranteed minutes and get them a season earlier in their development.
An obvious example would be Hayden Hackney at Boro if no PL clubs come in for him. And even if they do, being a guaranteed starter at a big club like Spurs aiming for promotion might appeal more to him if the only offers are Coventry and Ipswich who would likely come straight back down. He might be unobtainable, but I think he's the type we should be looking at.
Beyond that, talented up-and-comers from 2nd tier European leagues like Portugal, Belgium, Holland, etc. And a few decent loanees to bulk out the squad.