Which of the 16 types is the most compatible with the INFJ? An INFJ relationship with each personality is a unique one. INFJ relationships can be incredibly romantic or simply platonic. As friends or lovers, INFJs love others. They are idealists who appreciate introverts, extraverts, intuitives, sensors, feelers, thinkers, perceivers, & judgers! In Myers-Briggs, an INFJ is considered the rarest personality type. Read about compatibility with each of the 16 different types!