Here is a short video of an ideal location to earn the "Sensational" Achievement worth 10G early on in the game (Chapter 5 - Virility).
As you can see in the video, there is a lot of room for error. Just remember to keep mixing up your combos and it will come easily. If you fail to achieve by the end of the wave, simply restart the checkpoint before killing the last enemy.
If you're still struggling in this location, another easy place to earn this is during the
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