See all posts by Rupert Hargreaves Stock investing can be a challenging pastime. However, by concentrating on the market’s best companies, I think I’ll be able to increase my wealth over the long term. This is by no means guaranteed, but it’s a strategy I’ve followed for the past 10 years with success. Although past performance should never be used as a guide for future returns.With that in mind, here are what I believe to be five of the best shares to buy right now. 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…Stock investing roadmapI think some of the market’s best companies can be found in the tech sector and I believe one of the top shares to buy right now is e-commerce group THG.Many legacy brick-and-mortar retailers have struggled to adapt to the changing retail landscape, but THG has never had to change. The business was born in the internet age, and that’s given it a massive lead over competitors. I think if the company can build on this lead over the next few years, it can become a force to be reckoned with in the UK retail industry.Of course, this isn’t guaranteed. Retail is a viciously competitive market. Look at Arcadia. This was once one of the UK’s leading retail groups, and now its competitors are carving up the failed business. THG has the lead today, but it might not last forever. Despite this risk, I’m a buyer of the stock.Two other businesses in the same sector I believe are the best shares to buy now are Rightmove and Autotrader. Both are leaders in their respective fields.Rightmove is the UK’s most visited property website. Likewise, Autotrader is the UK most visited car website. As such, they’ve a large lead over their competitors, which may struggle to unseat these established brands. However, it’s not unheard of for a challenger to overtake an industry leader over time.The history of the internet is littered with businesses which were once on the top of their game, but ended up on the scrapheap. I’m well aware of the challenges these businesses face, but I’m comfortable with the risk level. That’s why I’d buy them today. Best shares to buy right nowFinally, I’d also buy data intelligence businesses GB and Experian. Data is becoming the new oil, and when it comes to this new commodity, more is always better. That’s why I like these firms. They’ve a strong reputation in the data market, which gives them a competitive advantage.However, having lots of data can also be a challenge. If one of these businesses ends up losing customer information, clients may desert the business. Consequently, it could lose its reputation. Despite this risk, these businesses should continue to see steady growth as the world increasingly becomes reliant on data and data management services. Enter Your Email Address Simply click below to discover how you can take advantage of this. FREE REPORT: Why this £5 stock could be set to surge Our 6 ‘Best Buys Now’ Shares Rupert Hargreaves owns no share mentioned. The Motley Fool UK has recommended Auto Trader, Experian, and Rightmove. 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. Here at The Motley Fool we believe that considering a diverse range of insights makes us better investors. Are you on the lookout for UK growth stocks?If so, get this FREE no-strings report now.While it’s available: you’ll discover what we think is a top growth stock for the decade ahead.And the performance of this company really is stunning.In 2019, it returned £150million to shareholders through buybacks and dividends.We believe its financial position is about as solid as anything we’ve seen.Since 2016, annual revenues increased 31%In March 2020, one of its senior directors LOADED UP on 25,000 shares – a position worth £90,259Operating cash flow is up 47%. (Even its operating margins are rising every year!)Quite simply, we believe it’s a fantastic Foolish growth pick.What’s more, it deserves your attention today.So please don’t wait another moment. Stock investing: I think these are 5 of the best shares to buy now Image source: Getty Images Rupert Hargreaves | Thursday, 11th February, 2021 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. Get the full details on this £5 stock now – while your report is free. 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.