Modifiers matching son:

• Machiavellian,
• cheery,
• immature,
• foolish,
• loyal,
• psychotic,
• bitter,
• jealous,
• insolent,
• moody,
• delusional,
• sensitive,
• eager-to-impress,
• silly,
• charming,
• insecure,
• juvenile,
• manipulative,
• corrupt,
• crazy,
• forgiving,
• affable,
• creepy,
• temperamental,
• good-hearted,
• gullible,
• ruthless,
• dutiful,
• polite,
• devoted,
• pious,
• obedient,
• crafty,
• cunning,
• shrewd,
• trustworthy,
• whiny,
• faithful,
• sulky,
• confused,
• weak,
• steadfast,
• disloyal,
• vengeful,
• slow,
• insightful,
• entertaining,
• mother-obsessed,
• oafish,

Simple categories matching good-hearted:

• person,
• caveman,
• robot,
• hero,
• chef,
• son,
• clown,
• president,
• athlete,
• fool,
• comedian,
• politician,
• sidekick,
• criminal,
• boxer,
• narcissist,
• invalid,
• lover,
• child,
• wizard,