If you've played Ultimate Team in FIFA or even Madden, then playing HUT in NHL 21 Hut Coins is pretty similar. You get Coins which can be spent on things like consumables, player products, packs and so forth. Points are bought with real money and used for buying packs. You'll basically require a steady income of Coins to progress via HUT but fortunately, the hints for earning them will be the same.
First up would be to work your way through different challenges, because they are sometimes done realtively easily and offer a good number of packs. It's also possible to make consumables and Coins through this method. Partake in Square Battles also -- these are offline matches against other HUT teams and provide packs and Coins upon winning.
Next up is would be the internet HUT matches. The number of Coins got depends upon your performance in the match in addition to the outcome (losing nets less Coins). Together with currency, completing matches will also go towards earning cards and packs. Keep a look out on Milestones and HUT goals along with daily goals and any particular event jobs for even more ways to earn Coins. In the end, do not be afraid to check at the Auction House.
As usual, you're going to want to search for good cards, buy them and flip them for a chance at turning a profit. Selling cards NHL 21 Coins Xbox1 bulk can also be possible though much less rewarding. Hang on to some good cards and look for chances to market them down online.