I came across this book Estrogeneration which covers this stuff and more. Haven't read it yet but bottom line he gives this site link where he provides products he has researched and likes. He does recommend a reverse osmosis machine etc.

[1] https://www.amazon.com/Estrogeneration-Estrogenics-Making-Si...

[2] https://www.ajconsultingcompany.com/whatiuse.html