natural way would be microneedling and massage for blood flow and making the absent parts of your scalp active again since they become harder, you can get these scalp brushes
take a look at minoxidil, the potential side-effects are nothing compared to your hair loss, if you really want the natural way this is it.
You need to research a lot. Good luck but I would still recommend going non-natural so you can stop the receding of the hairline as soon as possible. don't fall for rosemary oil cope or anything similar.