hahaha, oh my god, I had the same issue with my red hair. I had to color it at least once a week because it always fades to that ugly orange tint and I hate that shit. The best red I ever had was Jessica Rabbit red with pinkish-red highlights. It happened by accident because my hair was brown and I had blonde highlights. Looked goddamn awesome <3
There is another one I use (shampoo and conditioner), but now my mind is drawing a blank because I haven't used it in a while but it was really, really good.....oh, wait, I think it was called Tresemme or something. Big bottle for $7 but worked awesome. I also used Balea and that one made my hair smell sooooo good and it was super soft. I used the one in honey a few times, I think it was.
I can't believe my hair hasn't fallen out yet, lol, I haven't seen the natural color since I was 14.