One of Liverpool's most important signings throughout the years has been Wijnaldum. You need those players too.
I reckon Buendia would be a great pickup, capable in three or four positions and perfect from a technical standpoint. And not in that fancypants above-it-all way either, he always puts in a big shift when he plays. One of the hardest working players in a grafting Norwich side. Comes with plenty of experience from playing in England and is probably fairly cheap relative to what his market value would have been at a better club. If we want better players on a small budget we can't miss out on opportunities like this.