The Instant Pot accessories no one should live without

So you bought an Instant Pot — now what?
The super trendy, ten-in-one device appeared to have it all, even a yogurt maker. You swore off Uber Eats and promised to start actually cooking dinner at home. But soon after you began using your new kitchen appliance you learned that in order to make some of the Pinterest recipes you anticipated the most you’d need to purchase some Instant Pot accessories as well. 
So what should you get? And where should you buy them? We'll break it do