Titanium Trident

Long reach and a held thrust, which together let you poke things through a platform gap from somewhere they cannot follow you to. That safety is what the ore spears are for at this tier. The Adamantite Glaive behaves the same way, so world generation picks which one you make and there is nothing to gain from chasing the other.

The pre-hardmode Trident it is named after also improves how you move through water. This one does not carry that over. If you are kitting out for an ocean fight or a long dive, the family resemblance is cosmetic and the mobility has to come from somewhere else.