The 2024 Orc needs at least three cultures: "advanced" city, rural, and nomadic hunter-gatherer.
Currently, the Forgotten Realms Orc lacks cultural diversity. It is a "all tribes look the same" situation.
To culturally diversify the Orcs for 2024, the Forgotten Realms default setting can import and adapt Orc cultures from other D&D settings.
The Forgotten Realms Many Arrows tribe and its region can be one culture.
Eberron has three main cultures.
• subterranean martial culture (Jhorash'tar) (comparable to Forgotten Realms Orc)
• primal culture (Shadow Marches) (druidic cultures)
• monotheistic culture (Ghaash'kala of the Silver Flame)
• not counted as a separate Orc culture are the many Orcs who are citizens of multispecies city cultures.
Critical Role (planet Exandria) has the best cultural diversity for Orcs.
• Yios culture − civilization of sages
• Bladegarden culture − serving as military of Dwendalian Empire
• Othe culture − monastic tranquility
• Boroftkrah culture − rural agriculture and hunting
• Xhrhasian culture − nomadic hunter-gatherers
For D&D 2024, something like at least three distinctive Non-Evil Orc cultures
• Nomadic − families, hunter-gatherers with relations with Ogres, primal
• Rural − tribes, farming, hunting, often in militaries of other Humanoids, divine
• City − advanced civilization, sages, sciences, tranquility, Monks, arcane
Commonly, Orc communities have a prominent martial source. Psionic is rare but known and often correlating with adrenaline rushes.
The rural tribes tend toward divine magic, and clerical leaders, with Orcish versions of polytheism, as well as a monotheism viewing positive energy as the divine immanence. This monotheism and enlightenment philosophy prevails among the Orc city culture, but the cities are diverse and individualistic with other faiths present as well.
The rage-centered and expansionist cult, Eye of Gruumsh, seeks to influence any Orc culture as well as other Humanoid cultures, and achieves power over a few locales here and there. Orcish cultures tend to view the cult as terrorists.
The necromantic cult of Orcus has some influence in the certain Orc and Ogre families of Nomadic tribes, as well as a few enthusiastic sages of Orc cities.