Good morning Duckduck, it's nice to meet you. You've had a rough time. This is what I found:
https://www.cancer.gov/search/results?swKeyword=BRAF+colon+cancer+metasized+to+the+liver+
https://www.cancer.gov/about-cancer/treatment/clinical-trials/disease/colon-cancer/treatment
https://www.cancer.gov/about-cancer/treatment/clinical-trials/disease/liver-cancer
Perhaps others can fill in other sites that will offer other options for you.

Have you asked your doctor for recommendations?
Can I help with anything else?