Before you search for the best dividend exchange-traded funds (ETFs), it is recommended you understand your needs and overall investment objectives. ETFs are hybrids of mutual funds and stocks. When you invest in the ETF, you purchase shares in the fund, which buys the underlying asset. Here are six of the best high-dividend ETF funds: Vanguard High Dividend Yield (VYM) This ETF adopts the simple method of choosing stocks that have higher dividend yield when compared to other companies. This has resulted in building a diversified portfolio comprising 400 stocks with higher market capitalization. The majority of these stocks belong to the healthcare, consumer, and financial sectors. During the last decade, VYM delivered average annual returns of 12.9%. The expense ratio is the lowest in the industry at 0.06% per annum. Vanguard Dividend Appreciation (VIG) The ETF focuses on investing in companies that have a long history of increasing their dividend payouts over the years. The portfolio includes approximately 180 stocks with low yields. The ETF has earned average returns of 12.6% per year over the last 10 years. The expense ratio is 0.06%, which makes it an excellent option if you do not mind lower dividend returns currently but want to earn more in the future.