There are several different types of harmonic chart patterns, including:

Gartley pattern: This pattern is formed by a series of Fibonacci retracements and extensions, and is considered a bullish reversal pattern.

Butterfly pattern: This pattern is similar to the Gartley pattern, but with a different set of Fibonacci levels. It is also considered a bullish reversal pattern.

Bat pattern: This pattern is similar to the Butterfly pattern, but with a different set of Fibonacci levels. It is considered a bearish reversal pattern.

Cypher pattern: This pattern is based on Fibonacci retracements and projections, and is considered a bearish reversal pattern.

Crab pattern: This pattern is similar to the Cypher pattern, but with a different set of Fibonacci levels. It is also considered a bearish reversal pattern.

Harmonic patterns are considered to be high-precision setups and are used by traders to identify potential turning points in the market. However, it's important to note that these patterns are not always reliable and should be used in conjunction with other technical and fundamental analyses.