Which constellation does ISFJ match best?

The best choice for ISFJ is ESTP or ESFP. The dominant function of ISFJ, that is, inward perception, and the dominant function, that is, the other half of outward perception, form a perfect complement.

Although two people of any personality type can have a healthy relationship as long as their personalities are fully developed. However, the natural partners that are more suitable for ISFJ are ESTP, ESFJ or ESFP. The leading function of ISFJ is "introversion", which best matches the leading function of these two personality types.

ISFJ characteristics

ISFJ people attach great importance to interpersonal relationships. They are usually generous, tolerant, caring and loyal, and will put the needs of others above their own. In some cases, they will have great emotional needs, but they will hide their true feelings from others.

They are very serious about their commitments and seek feelings that can last a lifetime. ISFJ is very reliable, and they will put a lot of energy into making things go smoothly. Whenever someone asks them to do something, it is difficult for ISFJ to refuse each other, and because of this, their efforts are often taken for granted.