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. Enter Your Email Address Simply click below to discover how you can take advantage of this. Despite the recent stock market rally, many UK shares continue to have relatively high dividend yields. As such, they can be used to generate a worthwhile passive income in 2021 and in the coming years.Focusing on yields and dividend growth is important for any income investor, I feel. But building a diverse portfolio that offers less risk and higher reward potential may be equally crucial. It could offer a more stable income stream that has a higher chance of rising in the long run.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…As such, through buying companies with different geographic exposure and that operate in varied industries, it may be possible to obtain an attractive income.Buying UK shares in different countries for a passive incomeThe prospects for the UK economy are set to improve sharply following the pandemic. But buying shares in a wide range of regions could be a sound move when seeking to make a passive income. After all, it is extremely difficult at the present time to deduce which countries and regions will bounce back the fastest from the economic challenges of the last year.Fortunately, it is relatively straightforward to gain exposure to different parts of the global economy. For example, the majority of the FTSE 100’s income is derived from countries outside the UK. As such, it is not necessary to buy companies listed in other countries to gain exposure to different economies. This could make the process of building a diverse passive income stream easier for UK-based investors.Purchasing UK stocks from different industriesJust as it is difficult to ascertain which countries will recover quickly from present challenges, it is also tough to judge which industries will perform well. As such, it may be prudent to buy UK shares that operate in different sectors to make a more resilient passive income.For example, banking stocks have really struggled in the last year due to low interest rates and a weak economic outlook. They could experience further difficulties. Or they could be buoyed by an economic recovery that leads to a rise in interest rates over the coming years. Similarly, retailers’ performance may be very closely linked to the end of lockdown measures in the UK because of their presence on the high street. Predicting when social distancing requirements will end is a very tough task.The cost of diversifying among a wide range of companies has fallen in recent years. As such, passive income investors with varying portfolio sizes may realistically be able to build a portfolio containing a relatively large number of companies. This may provide them with exposure to a broad range of businesses and sectors. And that could reduce their dependence on a small number of industries and/or companies. Over time, this may provide a more resilient and faster-growing income stream as the world economy recovers. FREE REPORT: Why this £5 stock could be set to surge How I’d generate a passive income from UK shares starting today Get the full details on this £5 stock now – while your report is free. See all posts by Peter Stephens 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. Image source: Getty Images. Our 6 ‘Best Buys Now’ Shares Peter Stephens | Thursday, 11th February, 2021 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.