If you are eating a wide variety of animal foods, like meat, seafood and dairy, then you should be getting the required amount. If you have had recent testing that shows otherwise, I would not recommend supplementing blindly.
With that said, I do not eat dairy products with exception of butter, and choose to make my own eggshell powder from soy/corn free pastured eggs (you would buy or raise the eggs, clean and bake, then grind into a fine powder) and sprinkle into food or drink of choice. I don’t do this often, but when I feel I need it (when I go for long time without seafood or variety). Another recommendation is making bone broth, it’s very easy! I buy a whole chicken and some chicken feet, put the whole thing in a large pot with fresh water and salt, and slow cook for 8 hours. I let it cool then strain the broth into mason jars and wear gloves to pull apart the chicken meat into a separate container (I don’t eat the feet tbh). Then I have broth for a week and shredded chicken for easy meal prep. You can do this with a meaty bone from beef or lamb if preferred. I just recommend doing a large batch to last a week or so, because it is a long process and I personally don’t want to be making every other day.
Hope this helps! Of course you can take a supplement, if it is more convenient to you and you can see exactly how much you are dosing. I just feel like if you can eat it, then you get the natural cofactors as well. Cheers!