“This Stock Could Be Like Buying Amazon in 1997” I’m sure you’ll agree that’s quite the statement from Motley Fool Co-Founder Tom Gardner.But since our US analyst team first recommended shares in this unique tech stock back in 2016, the value has soared.What’s more, we firmly believe there’s still plenty of upside in its future. In fact, even throughout the current coronavirus crisis, its performance has been beating Wall St expectations.And right now, we’re giving you a chance to discover exactly what has got our analysts all fired up about this niche industry phenomenon, in our FREE special report, A Top US Share From The Motley Fool. I would like to receive emails from you about product information and offers from The Fool and its business partners. Each of these emails will provide a link to unsubscribe from future emails. More information about how The Fool collects, stores, and handles personal data is available in its Privacy Statement. Millennial investors: 3 stocks I think they should be buying Enter Your Email Address From my observations, it seems millennial investors are ready to take a little more risk than investors approaching retirement age. Which is how it should be. With time on your side, a long-term portfolio can be grown at a steady pace and there is more leeway for mistakes to be made. So, if you are a millennial investor with plenty of investing time ahead, you may like to consider the following three stocks for your Stocks and Shares ISA. I like easyJet (LSE:EZJ), Aston Martin Lagonda (LSE:AML) and Plus500.My top airline stock: easyJetAfter falling 54% this year, the easyJet share price looks to be in budget territory. Clearly, with talk of the global pandemic being far from over, there’s risk associated with buying airline stocks. However, I do think they will eventually recover, and global flights will resume. When it does, easyJet looks well placed to continue where it left off and should rise to the occasion.5G is here – and shares of this ‘sleeping giant’ could be a great way for you to potentially profit!According to one leading industry firm, the 5G boom could create a global industry worth US$12.3 TRILLION out of thin air…And if you click here we’ll show you something that could be key to unlocking 5G’s full potential…EasyJet has a price-to-earnings ratio of 7, earnings per share are 88p and it has access to enough cash to cover a nine-month grounding (if such a dismal scenario arises).Given time, I think this airline will recover, but its share price may have further to fall before it does. I think it’s one stock for millennial investors to watch, waiting for a dip and buying with patience in mind.My top car stock: Aston Martin LagondaThe Aston Martin share price has been yo-yoing all over the place these past few weeks. From a high of 80p in early June it’s now back down 37.5% to hover around 50p. Hitting the headlines on close to a daily basis, Aston Martin has many reasons for its share price volatility. In late April, the company resorted to a £500m rights issue, its CEO confirmed his exit at the end of May, followed by the news it would axe 500 jobs. Last week it then confirmed another share placing, to raise a further £152m to get it through the coronavirus crisis.Despite all the challenges it’s facing, the company has big plans to produce luxury electric cars, including a £1.5m+ hypercar for launch next year. I think this is an interesting speculative stock for millennial investors to buy. It could offer significant upside in the years to come, but remains risky given its volatile history since listing.My top investing/personal finance stock: Plus500The Plus500 share price has been enjoying a winning streak since the pandemic struck. It’s up over 50% year-to-date. The cancellation of sporting activities brought a lot of would-be gamblers into the stocks and shares arena. This resulted in many new customers opening accounts with Plus500 to begin their journey into trading equities, cryptocurrencies and a myriad of other financial offerings.Plus500 has low debt, a price-to-earnings ratio below 12, earnings per share are £1.09 and it pays a dividend yield of nearly 4%. It may prove to be a cyclical buy, faring better when markets are volatile, but over the long term, I think it looks a top stock to buy for further growth and income.I think this is a good selection of diversified stocks to add to millennial investors’ portfolios. Risky, yes. But diversifying your shares with companies from a selection of sectors helps to offset that risk. See all posts by Kirsteen Mackay Click here to claim your copy now — and we’ll tell you the name of this Top US Share… free of charge! Our 6 ‘Best Buys Now’ Shares Image source: Getty Images Kirsteen Mackay | Thursday, 2nd July, 2020 | More on: AML EZJ Simply click below to discover how you can take advantage of this. Renowned stock-picker Mark Rogers and his analyst team at The Motley Fool UK have named 6 shares that they believe UK investors should consider buying NOW.So if you’re looking for more stock ideas to try and best position your portfolio today, then it might be a good day for you. Because we’re offering a full 33% off your first year of membership to our flagship share-tipping service, backed by our ‘no quibbles’ 30-day subscription fee refund guarantee. Kirsteen has no position in any of the shares mentioned. The Motley Fool UK has no position in any of the shares mentioned. Views expressed on the companies mentioned in this article are those of the writer and therefore may differ from the official recommendations we make in our subscription services such as Share Advisor, Hidden Winners and Pro. 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