Remove whole headlight assembly.
The method to change any of the bulbs on the front requires the removal of the appropriate head light assembly. This is easier than it sounds.
To remove either or both the head light assemblies, you have to remove the front grill. See the bulb replacement section of your owners handbook, Section 09 Roadside Emergency, (page 297 on mine), and a few pages further in, you will find instructions and pictures showing how to remove the grill and then the head light assemblies and finally the appropriate bulb.
As this sounds like your first time, I suggest you purchase genuine Land Rover EU manufactured bulbs rather than those of far east manufacturer. The Land Rover bulbs cost within pennies, (sometimes cheaper), of the far east stuff and are less prone to creating false error codes.
The handbook also shows how to remove and replace the bulbs in the rear tail light assemblies as well as license plate and everywhere else.
Note that side marker bulbs, front and rear, are W3W, not the similar looking hotter brighter W5W bulbs. The W5W will melt the side marker bulb holder - guess how I know?
The front blinker bulbs, LR part number XZQ500050 wedge base P21W bulbs are a different base from the rear signal light bulbs, bayonet base P21, LR part number 264591. Now that I think about my first time trying to figure all this out, it is not so simple or easy.