The Division 2 offers an impressive number of ways for you to min-max your character's stats and playstyle, one of the most prominent of which is SHD Tech.
The Division 2 SHD Tech Points are essentially a special form of currency which you can use to unlock various perks and passive abilities for your Division operative. They're extremely handy for, for example, maximising your XP gain, so you're going to want a boatload fast.
How to Farm SHD Tech quickly in The Division 2?</h2>
SHD Tech farming can be kickstarted with a running start if you begin working on your side-missions as soon as they are made available. Not only are they going to net you a fair bit of XP, but they'll also be providing you with lots of SHD Points to spend on Perks.
SHD Caches are another thing you'll want to be on the lookout for: these black suitcase-looking things will be strewn about the game world mostly willy-nilly - there for you to pick up at your own behest. Of course, finding these is entirely random, and cannot easily be relied on for a constant source of SHD.
Instead, sticking with side-missions is going to be your best bet for getting lots of SHD Tech Points, and fast.