A lean steak: Bavette (Whole foods, Amazon)
https://www.amazon.co.uk/Whole-Foods...ps%2C60&sr=8-2
Inexpensive, very tender. I use a thermometer probe 60C internal temperature (£10 at Amazon) for medium rare on the gas BBQ.
Fillet has no taste and expensive. Angus T-bone are very good.
Cote de Boef is excellent (again I use the Probe), only £15 a kilo, here
https://berkshiremeattraders.co.uk/p...cote-de-boeuf/