This. And the recommended party size in the modules 4-6 with advice on how to modify for more characters. Watch critical role run 6-8 member parties. The idea that 4 is optimal for D&D is a 4th ed hangover and doesn't really apply in 5th.

BG was 6, ToEE was 5+

@KingTiki points in favor or 6 party

* Increases the BG feel
* More tactical combat -- tactics come from party formation and not just environment
* More banters, more interactions
* More NPCs