Good guides for countries in Elijah's Map v7.1?

Wanted to know if there are any good guides (preferably on YouTube) on the countries from the Elijah's Map v7.1 map?

Not sure what you're asking for. The last roleplay Elijah released was NWE v6. There aren't any tips that specifically apply to RP, but you can find some of Viserion's videos on the main AtWar YouTube channel that can still help you in those games.