If you've got $10,000 ready to invest in the share market this month, the ASX is offering no shortage of opportunities.

But which high-quality Australian shares could be buys right now?

Here are three ASX shares that analysts think could be smart buys in August.

CSL Ltd (ASX: CSL)

CSL is one of Australia's largest healthcare companies and a global leader in biotechnology. Its core plasma therapies, flu vaccines, and specialty medicines generate steady demand, even when the economy slows.

Over the long term, CSL has been a compounding machine — growing revenue and earnings consistently for decades through innovation, research, and global expansion. The company's pipeline of new products and therapies provides further growth potential, while its defensive earnings base helps smooth out market volatility.

The team at Bell Potter is bullish on this Australian share and has a buy rating and $305.00 price target on it.

NextDC Ltd (ASX: NXT)

Another Australian share that is highly rated by analysts is NextDC. It operates a network of high-quality data centres across Australia and the Asia-Pacific, serving as critical infrastructure for cloud computing, artificial intelligence, and the digital economy.

Demand for secure, high-capacity data storage is booming, and NextDC is investing heavily to expand its capacity and capture more of that growth.

In addition, the company's long-term contracts with large enterprise and cloud providers create recurring revenue streams, while its strategic land bank in key locations positions it well for future expansion. With the AI revolution set to drive data consumption higher for years to come, NextDC is tapping into one of the most powerful structural trends in the market.

Morgans believes it would be a great pick right now. Its analysts recently put a buy rating and $18.80 price target on its shares.

Siteminder Ltd (ASX: SDR)

A final Australian share that could be a buy according to analysts is Siteminder. It is a hotel technology platform used by thousands of accommodation providers worldwide to manage bookings, pricing, and online distribution.

The company's software integrates with booking engines, payment systems, and major travel platforms, making it an essential tool for hotels looking to boost occupancy and revenue.

Siteminder has been expanding internationally and continues to grow its customer base, with strong recurring revenue and high gross margins. As global travel demand normalises and more accommodation providers invest in digital tools, Siteminder's addressable market could expand significantly.

It is partly for this reason that Macquarie has an outperform rating and $6.09 price target on its shares.