KGirl, Here is what I have for mine. I also have that glass lid, which I bought separately, so that was good that you got that - it is useful for a lot of things. Besides slow cook recipes, it's good for some steaming - I use it with that steamer basket I got in the set, and I set it on sauté/high.
Accessories for the Instant Pot. by
pepperhead212, on Flickr
There are many sets of accessories out there - when I started l needed a new seal, and I got 3 of those, plus that red chimney thing, to redirect the steam, so it goes away from my cabinet looked useful, and turned out to be really good! Those blue "grabbers" work great for taking the hot pot out of the cooker. That steamer rack under those two items came with the pot, and is great for a lot of things, and I used that for HB eggs, before that set gave the the one on the left. That blue steamer thing, with the lid I haven't used - not sure what I'll use it for, but maybe some idli, or some Chinese steamed buns.
You'll just have to figure out what you cook, and see what set seems most appropriate. It's like knife sets, there's always something that it seems you won't use, though in this case, usually buying a set saves a lot!