Two small patches to the weapon used by the follower Lintra the Spearmaiden to have it use Spear/Pike animations. The patch simply adds the keywords needed to the weapon so it can use the animations of either Animated Armory or True Spear combat, as well as a slight adjustment to the weapon size/reach/stagger to be more inline with a spear.

Install:
Install Lintra the Spearmaiden, Install either Animated Armory or True Spear Combat. Then install the patch for whichever one you use.

The patches are ESL files so they will not add to your plugin count if you use MO2 or a mod manager able to handle ESL plugins properly. You can also simply merge the contents of the plugin into the mod itself if you know how to use XEdit.

Credits:
I did not make anyone of the mods this requires, this is simply just a patch.
Lintra is by Sursed and the original Oldrim version can be found on Lovers Lab.
Animated Armory is by Nickanak
True Spear Combat is by BouBoule201288