Way of the Clone monks use sentient clones to aid them

Level 3: Create Clone

At 3rd level you gain the ability to create a clone. As an action on your turn, you may spend a focus point to create a clone to create a clone in a spot you can see within 5 feet of yourself. You may spend points to create as many clones as is your maximum. You may also use you bonus action to only spend one point to create one clone. The clone is the same creature type as you, and has the same appearance and size as you, and speak the same languages as you. It takes its own turns and initiative and has has the same actions, speed, spells, AC, traits, and features as you do at the time of creation, except for the Create Clone feature. If a clone uses a feature that uses focus points, it uses your focus points to do so, as well as spell slots if it casts a spell. Their HP is equal to your level + your proficiency modifier + you constitution modifier

Your clones last for 10 minutes or until they reach zero hit points, at which point they disappear, as well as if they are are on a different plane of existence as you. You can have a maximum of 2 clones created at a time, this number increases to 3 clones at 6th level, 4 clones at 11th level, and 5 clones at 17th level. When you Create a Clone, you may gain a point of exhaustion and spend an additional focus point to make the clone only disappear when dismissed, when it reaches zero hit points, or when it is no longer in the same plane of existence as you.

Clone Connection

While your clones are within 100 feet of you, you may telepathically communicate with them. Additionally, as an action, you can see through your clone's eyes and hear what it hears until the start of your next turn. During this time, you are deaf and blind with regard to your own senses.

Level 6: Clone Healer

At 6th level you gain the ability to heal your clones. As a bonus action on your turn, you may spend 1 focus point to restore hit points to all of your clones that you can see equal to a roll of your martial arts die plus your wisdom modifier.

Level 11: Enhanced Clones

At 11th level, when you create a clone you may now choose one of the following effects to apply to that clone

-Clone Offence: The clone has the effect of the Bless spell applied to it for 1 minute
-Clone Health: The clone gains temporary hit points equal to a roll of your martial arts die + your wisdom modifier
-Clone Speed: The clone increases its walking speed by 15ft for 10 minutes

Level 11: Enhanced Clone Connection

At 11th level, You may now telepathically communicate with your clones as long as they are on the same plane of existence as you. 

Additionally, when one of your clones you can see is hit with an attack, you may, as a reaction, force the attacking creature to reroll the attack roll. Alternatively, when you are hit with an attack, your clone may use its reaction to cause the attacker to reroll their attack.

Level 17: Clone Mastery

At 14th level, you gain the ability to spend 7 focus points as an action as create 5 clones at points you can see within 30 feet of you with all 3 effects from the Enhanced Clones feature applied to all created clones. 

In addition, your clones now last until dismissed or they reach zero hit points.