Hoplite

You are a warrior that is much better at fighting the forces that oppose you when your allies are nearby.

Unit

Beginning when you choose this archetype at 3rd level, if you have a friendly creature within 5 feet of you and a hostile creature within 5 feet of them, you have advantage on attack rolls against the hostile creature.

Warrior alliance

Starting at 7th level, when you are wielding a weapon with two hands, your reach increases by 5 feet.

Crested pride

Beginning at level 7, you a gain a +2 bonus to AC when wearing medium or heavy armour and using a shield.

Marcher

At 7th level, you can no longer gain the exhausted condition through non magical means.

Ally

Starting at 15th level, you can use your bonus action to summon forth a CR 1 creature. This creature is friendly to you and can be commanded to use its action and movement on each of your turns (no action required)

Phalanx

When a friendly creature is within your reach, both you and them gain a bonus to your AC, Damage rolls, and Attack rolls.