Hopper X-Treme + VanillaTweaks Compat
This resource pack will be useful to you if in Minecraft you simultaneously use the Hopper X-Treme addon and the VanillaTweaks texture pack with directional hopper mechanics. The resource pack doesn't add its own textures, but simply adapts the models of additional Hopper X-Treme hoppers to match the directional texture variations of VanillaTweaks.
Below you can see how the new types of hoppers look with directional textures.

*This resource pack doesn't modify the actual textures — it only adapts the block geometry.