The most money is made by BTS, Blackpink, and Kpop groups.

K-pop is a billion-dollar industry. Owning a large number of fans worldwide, helping Korean groups bring in increasing revenue.
Top Kpop groups in the industry make money by releasing music products, performing concerts, advertising, etc.
1.BTS
Although BTS members’ solo activities are less than other groups, concerts and tours have brought in a massive source of revenue.
BTS will become the wealthiest K-pop group in 2021. Seven members have made significant contributions to the company’s success and the Korean economy.
According to a report by Hyundai Research Institute in 2018, BTS brings an economic value of about 3.5 billion USD/year to Korea. This figure is said to increase by $1.2 billion per year. BTS is also one of the main factors that helped worldwide music revenue grow in 2018, reaching 19 billion USD.
Thanks to its global coverage, as of 2020, BTS has total assets of $3.6 billion. The members with the highest income are j-hope and Suga, with about 15 million USD per year.
2.TVXQ
TVXQ is one of the most popular K-pop groups in Japan. The group’s music products broke many records, and they became the most successful foreign artists in the land of Phu tang.
In 2013, TVXQ’s Japan tour was one of the year’s highest-grossing tours. By 2017, the new tour had hit higher numbers, breaking the previous record.
The members have promoted products for major brands and brands in the world. Billboard also describes TVXQ as the “King of Kpop”.
3.TWICE
TWICE is known as the “national girl group” thanks to its popularity and popularity through released songs. In 2020, the group was estimated to have sold more than 10 million albums in Korea and Japan, making it to Forbes’ “30 Under 30” list.
Investors highly appreciate TWICE contributing to JYP’s stock price increase from 2015 to 2018. The JYP girl group earns 1.45 million USD/and becomes the primary source of revenue for the company thanks to the album and product sales.
4.Blackpink
Blackpink is a four-member K-pop group under YG Entertainment, with artists like BigBang, WINNER, and iKon. In a year, Blackpink earned about 25.3 million USD.
Forbes has collectively called the Blackpink members “one of the most powerful celebrities in Korea.” The Blackpink girls have high brand value, increasing popularity internationally and among many brands. Favourite fashion, luxury cosmetics.
The most popular K-pop girl group members are currently working as ambassadors and models for various prestigious brands.
As a group, Blackpink’s joint and individual products have been well received by the public and achieved good results.
5.EXO
In 2021, EXO was estimated to earn between $100 million and $130 million. Each member of the group brought in more than 13 million USD. The group’s “male gods” are involved in many other projects, including acting and releasing solo music, not only working as an idol.
EXO’s best-selling album – “Don’t Mess Up My Tempo”, has sold over 1.9 million copies. The group held many world tours during their activities, making a significant contribution to SM Entertainment’s finances.
In the fourth quarter of 2018, SM reported making $188 million, of which EXO accounted for 31% of that amount. EXO will have income from concerts, albums, advertising contracts, and music products every year. According to the update on 5.2020, EXO’s net worth is about 1 billion USD.