Wandering Trader
It can be quite difficult to locate Wandering Traders sometimes. They are just sneaky fellows. To counter that Wandering Traders announce their presence with Nice Villagers Remastered. They send a neat and random Message to players within a 64 block radius when they spawn. They also shoot some fireworks and glow for a short period of time after they've spawned to communicate btter where they are exactly. Every Wandering Trader also has a random name assigned to it.
Trades of Wandering Traders have been expanded to alsways include 3 mobheads (with noteblock sounds) as well as a 25% chance of also having a random enchanted treasure book. This should make it a bit more rewarding for players to look out for a Wandering Trader.
But be careful! - Wandering Traders have a small chance to spawn as a disguised Illusioner. It reveals it's true identity when interacting with it. If you look closely you can spot them out since they give of some stinky, blue particles.