Hello - I hope I am asking this question in the right place. This is my first post. I am looking to travel LAX to Paris March 13-20 with hubby (NO KIDS

I have 125K miles. Looking to fly business class if possible (I can buy more miles or possibly borrow from family) if I can find an awesome flight to either London (then Chunnel or fly to Paris) or LAX to Paris or other city in France and then train to Paris. Wondering which One World partner would have the best business class flights. Any help or suggestions appreciated. Thank you!