The best exchange traded funds (ETFs) are not always the ones making the most noise today.
For long-term investors, a strong buy and hold pick should offer exposure to markets, industries, or businesses that can keep becoming more important over time.
With that in mind, here are three ASX ETFs that could be worth considering.

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Betashares Asia Technology Tigers ETF (ASX: ASIA)
The Betashares Asia Technology Tigers ETF gives investors exposure to large technology and online retail companies across Asia, excluding Japan.
This is an interesting part of the market because Asia is both a major producer and consumer of technology.
The region is home to key semiconductor manufacturers, hardware businesses, ecommerce platforms, digital entertainment companies, and internet giants. That means investors are not just buying one narrow idea. They are gaining exposure to several parts of Asia's digital economy.
Holdings include SK Hynix, Samsung Electronics, and Taiwan Semiconductor Manufacturing Co (NYSE: TSM).
This could make the Betashares Asia Technology Tigers ETF a strong long-term option for investors who want technology exposure beyond the usual US names.
Betashares Global Cybersecurity ETF (ASX: HACK)
The Betashares Global Cybersecurity ETF could be another ASX ETF to look at for the long term.
Cybersecurity is becoming one of those expenses that businesses cannot easily avoid.
Companies can delay some technology projects when conditions are tough. But protecting customer data, payment systems, cloud networks, devices, and internal systems is harder to postpone.
That gives this sector a different feel to many other growth themes. The Betashares Global Cybersecurity ETF owns companies involved in areas such as network security, endpoint protection, identity management, cloud security, and threat detection.
This includes Palo Alto Networks (NASDAQ: PANW), Fortinet (NASDAQ: FTNT), and CrowdStrike (NASDAQ: CRWD).
This ETF can be volatile, but the need for better digital protection is unlikely to disappear.
Vanguard Global Technology Index ETF (ASX: VTEK)
A third ASX ETF that could be a strong buy and hold pick is the Vanguard Global Technology Index ETF.
This fund gives investors exposure to around 300 large and mid-cap technology stocks across developed and emerging markets.
That makes it broader than a fund focused only on one exchange or one technology theme.
The Vanguard Global Technology Index ETF provides exposure to companies involved in chips, software, hardware, digital platforms, cloud infrastructure, and other parts of the global technology sector.
Its holdings include NVIDIA (NASDAQ: NVDA), Apple (NASDAQ: AAPL), and Microsoft (NASDAQ: MSFT).
For investors who believe technology will keep taking a larger role in business and everyday life, this ETF offers a simple way to invest in that long-term shift.