So after doing a bit of searching I found this article: https://www.uclahealth.org/news/article/3-ways-increase-estrogen-naturally
This seems like a bit more of a realistic plan for designing foods/drinks that help boost estrogen levels. Not a substitute for HRT by any means, but rather something that could supplement/enhance it that is also relatively safe to consume regularly.
So what you're saying is, instead of spiking our energy drinks with oral E, we need to spike our injectable E with energy drinks. I like the way you think!
Edit: DISCLAIMER: Do not, under any circumstances, actually try to do this! E needs to go into either adipose tissue or into a muscle, and energy drinks probably aren't even safe if taken intravenously (and with the carbonation removed).