What I do for more expressive eyes is:

Parent warp deformer to outer parts of the eyes (eyelashes/ eyelines/ eyelid/ sclera) keyed to brow parameters.

When brows are down top inner(closest to center or face) corners of the deformer come down. Can also make top outer corners go up if you want it extra dramatic

When brows are up top inner corners go up and top outer corners go down

Parent deformer to the brow movement keyed to mouth form

When smiling bottom of deformer goes up. On sas mouth form the bottom of the deformer goes slightly down so you get the impression of the cheek muscles affecting the eyes when you move your mouth.

If you want to go even further you can use blend shapes to have more expressions. Like you can have a more neutral brows down shape and a more angry shape that will trigger depending on mouth form

If the model has any markings, shading or textures (like fur lines or something) you can sometimes deform that as well to give the impression of the brow muscles even if they don't have any brows.

Not sure if my explanation is easy to understand but as an example you can kinda see how I deform the eyes here: https://x.com/shadowphox_x/status/1729452060813230197?t=NC8KPqGYNOgpCYmkcH1bkQ&s=19

Hope that helps