How can I get more testosterone naturally?

So I’m 17 and I’ve been hearing a lot of people say that waking up with morning wood is a good sign of high testosterone, but I don’t really get morning wood any more, and it’s really hard for me to grow hair anywhere besides my butt and head hair. So is there anyway I could get my testosterone up naturally?

I do exercise regularly because I play both football and basketball. I sleep well around 7-9 hours a day. I don’t feel as though I’m stressed so I don’t that’s it.