With so many shares to choose from on the Australian share market, it can be difficult to decide which ones to buy. The good news is that brokers across the country are doing a lot of the hard work for you.

Three top ASX shares that leading brokers have named as buys this week are listed below. Here's why they are bullish on them:

AGL Energy Limited (ASX: AGL)

According to a note out of Macquarie, its analysts have retained their outperform rating on this energy giant's shares with a trimmed price target of $11.47. Macquarie highlights that the current environment of mild weather and low volatility makes it hard to create a positive earnings surprise in FY 2025. And, all things being equal, it feels that this creates a flat outlook for FY 2026. However, it remains positive on AGL Energy. Particularly given its belief that retail battery adoption will be the next surge. It highlights that in NSW, a 26MWh battery being installed for ~$4k suggests a step change in demand is plausible. And while conversion to batteries may reduce gross electricity sales, it believes that savings on FIT and hedging should more than offset this. The AGL share price is trading at $10.33 today.

Collins Foods Ltd (ASX: CKF)

A note out of Citi reveals that its analysts have retained their buy rating and $9.60 price target on this KFC restaurant operator's shares. This follows the release of an update from Restaurant Brands which revealed that it expects cost of living pressures to improve later in the year. While Citi suspects that this could mean there is downside risk to consensus sales estimates, its valuation accounts for this. As a result, it thinks that Collins Foods shares are good value at current levels and appears to believe investors should snap them up on any weakness. The Collins Foods share price is fetching $7.90 at the time of writing.

SGH Ltd (ASX: SGH)

Analysts at Goldman Sachs have retained their buy rating on this diversified investment company's shares with a trimmed price target of $58.60. According to the note, the broker has updated its full year estimates for 2025 to 2027 to reflect Seven Group Holdings' investor day business updates. Goldman has updated its FY25/26/27 net profit after tax estimates by -3%/-4%/-3% to incorporate parts pricing headwinds and adverse weather on its Industrial Services businesses. Nevertheless, it is feeling positive on the company and sees plenty of value in its shares at current levels. The SGH share price is trading at $49.70 this afternoon.