The U.S. economy added 943,000 jobs in July 2021, the maximum in 11 months and above market expectations of 870,000. The job gains followed a similar increase in June (+938,000).The U.S. unemployment rate declined to 5.4% in July 2021, below market expectations of 5.7%. The number of unemployed persons dropped by 782,000 to 8.7 million. These measures have improved substantially from their highs at the end of the February-April 2020 recession.Investors may want to bet on ETFs that are the largest beneficiaries of job gains. Below we have highlighted some of these that will likely see smooth trading in the days ahead.LeisureLast month, leisure and hospitality employment grew by 380,000, thanks mainly to the gradual reopening of the economy. Gains mainly occurred in food services and drinking places (+253,000). Job gains also happened in accommodation (+74,000), and in arts, entertainment, and recreation (+53,000). Employment in leisure and hospitality is still down by 1.7 million, or 10.3% year over year.The data makes Invesco Dynamic Leisure and Entertainment ETF PEJ a timely investment. The fund has a Zacks Rank #3 (Hold) with a High risk outlook.Transportation and WarehousingLast month, retail employment grew by 50,000. Job growth occurred in transit and ground passenger transportation (+19,000), warehousing and storage (+11,000), and couriers and messengers (+8,000). Employment in transportation and warehousing has grown by 534,000 since April 2020.The data makes iShares U.S. Transportation ETF IYT a timely investment. The fund has a Zacks Rank #2 with a High risk outlook.Health CareHealth care added 37,000 jobs in the month. The July job gains mainly occurred in ambulatory health care services (+32,000) and hospitals (+18,000). Health care employment is still lower by 502,000 than in February 2020.The fund iShares U.S. Healthcare Providers ETF IHF should thus benefit. The index of the fund looks to track stocks of health maintenance organizations, hospitals, clinics, dentists, opticians, nursing homes, etc. The fund has a Zacks Rank #3 (read: UnitedHealth's Solid Q2 Earnings Put These ETFs in Focus).ManufacturingAbout 27,000 jobs were created in the sector in the month. Gains were palpable in durable goods (+7,000). Obviously, such positive data makes us keep a close watch on Industrial Select Sector SPDR ETF XLI.The underlying Industrial Select Sector Index includes companies from the following industries: industrial conglomerates; aerospace & defense; machinery; air freight & logistics; road & rail; commercial services & supplies; electrical equipment; construction & engineering; building products; airlines; and trading companies & distributors. The fund has a Zacks ETF Rank #1. Zacks' Top Picks to Cash in on Artificial Intelligence In 2021, this world-changing technology is projected to generate $327.5 billion in revenue. Now Shark Tank star and billionaire investor Mark Cuban says AI will create "the world's first trillionaires." Zacks' urgent special report reveals 3 AI picks investors need to know about today.See 3 Artificial Intelligence Stocks With Extreme Upside Potential>>Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report Industrial Select Sector SPDR ETF (XLI): ETF Research Reports iShares U.S. Transportation ETF (IYT): ETF Research Reports iShares U.S. Healthcare Providers ETF (IHF): ETF Research Reports Invesco Dynamic Leisure and Entertainment ETF (PEJ): ETF Research Reports To read this article on Zacks.com click here. Zacks Investment Research