When reading through the list of signings in the OP the one that jumps out, relative to the fee and expectations, is Ox.
He had a decent start but he's fallen so far out of favour that he's been surpassed on the depth chart by every single midfielder we have, including Elliott and Jones.
Some of that has been down to him not making the most of opportunities, but he's also been a victim of circumstance. The team has evolved from being a run-and-gun end-to-end rollercoaster to be a controlling machine that strangles opponent's like a python rather than going end-to-end. Ox was well suited to the early Klopp team, but is a complete misfit in the current team as he's been unable to adapt his game.
He's also a player who needs a run of games to be get into his groove, but he's never going to be afforded that here.
That all said, I anticipate that he'll go to another decent Prem team where he can get regular football and do well for himself. Leicester or West Ham seem like clubs he could do that at. Alternatively Howe's Newcastle, especially as Howe has a track record of signing Liverpool cast-offs (eg. Ibe, Brad Smith, Solanke).