[Enhancement] Rakish Audacity Sneak Attack

[ravingdragoon]

Is there a way to get a version of sneak attack that is specifically for Swashbuckler Rogues, who have Rakish Audacity, since they do not need an ally within 5 feet?

Rakish Audacity
Starting at 3rd level, your confidence propels you into battle. You can give yourself a bonus to your initiative 
rolls equal to your Charisma modifier.

You also gain an additional way to use your Sneak Attack; you don’t need advantage on the attack roll to 
use your Sneak Attack against a creature if you are within 5 feet of it, no other creatures are within 5 feet
of you, and you don’t have disadvantage on the attack roll. All the other rules for Sneak Attack still apply 
to you.  

[kandashi]

Use the Midi Sample Items version