Global equities are showing signs of being stretched across many sectors. 

Despite a dip last week, both the S&P/ASX 200 Index (ASX: XJO) and S&P 500 Index (SP: .INX) are not far off all-time highs. 

When this happens, it can be prudent for investors to shift the focus away from growth/value investing strategies to income. 

One way to do this is through ASX ETFs that target market-beating income returns. 

Income-focused ASX ETFs can be attractive because they offer diversification and access to dividends that may help cushion volatility.

Here are three ASX ETFs investors may wish to consider for an income boost. 

Vanguard Australian Shares High Yield ETF (ASX: VHY)

This high yield ASX ETF consistently…