VEGAN/CF HELP

I am desperate to find detergent that ACTUALLY works and is vegab/cruelty free. Those things are very important to me. I currently use Seventh Gen (fragrance free), molly’s suds powder, or method. I find my clothes will smell fine and clean after the dryer but after a few days most have a faint stale smell, some a strong one I can’t remove. I have cleaned the washer and dryer thoroughly multiple times. Any advice is appreciated!!