BA or Avios credit card(s) required
How lazy.
I can imagine being a credit card holder with Coutts you would have a IFA do all the hard work for you.
As others have said you're going to have to put time and effort in yourself to figure it out or go to an IFA and ask them at your expense.
BA Premium Plus AMEX or a Lloyds Avios AMEX. Those are your best choices.