Tall ladies , where do you find pants? 6'4 and so tired of regular pants looking like capris...?

You are so high in the upper percentile of female height, your best move might be bespoke clothing. Go get some tailored gear. It will fit you perfectly. It's more expensive, but really you can just get a few base pant items that you can match with various tops to keep it fresh. Over time, you can get more bespoke clothing and fill out your wardrobe. It's just a reality of being outside the norm, just like how obese people have trouble finding clothes that fit nice, or super short people, etc.