In general Land/Range Rovers aren't reliable but there's 1 big exception.
06‐09 LR3, Range Rover and Range Rover Sport.
The 4.4l v8 is absurdly reliable and with routine maintenance will hit 200k. They're also very easy to work on and have a strong network of after market parts to avoid dealer mark ups. They also use the ZF6 transmission which basically came in every Ford, Rover and Mercedes of the time.
You also don't have a crazy amount of electronics to worry about