Please recommend a regular shampoo that lathers well.

Since I've only used functional hair loss shampoos, I actually find myself thinking about regular shampoos that are affordable and lather well.

I ended up not knowing.

I usually tend to dye my gray hair at home,

Functional shampoos tend not to lather up at all,

I thought a regular shampoo would be better in this case, so I was web surfing....

I have no idea which shampoo would be good.

I would appreciate your valuable opinions.