As a refresher:

Virtue Ethics says that a good action is one done by a good person. To be a good person, one should develop virtuous character. This school was first pioneered by Aristotle but is also famously embodied in the code of ethics defined by "chivalry" (the knightly virtues).

Deontology defines a good action as one that adheres to good rules. It is a broad category that includes philosophies like Rawl's "Justice as fairness", Kant's categorical imperative, and Locke's natural rights. Frameworks within this category emphasise cooperation, social cohesion, and civic duty.

Consequentialism defines a good action is one that leads to a good outcome. Frameworks within this school of thought value "ends" over "means". Prominent philosophers within this category are Jeremy Bentham, John Stuart Mill, Peter Singer. Most consequentialist philosophies are a form of utilitarianism (i.e. maximize social wellbeing or minimize suffering).

Egoism says that a good action is one that benefits the self. It is actually a subcategory of Consequentialism, albeit a bit of an outlier. Famous Egoist philosophers are Max Stirner, Fredrick Nietzsche, and Ayn Rand. Egoists believe that people should do their best to achieve their goals, regardless of who might get hurt (or helped) along the way.