When one starts a homestead it's easy to get sucked into the idea of needing all the animals, chickens, ducks, cows, sheep, goats etc. It is hard to dial in what works best I your specific situation.
Take me for example at first glance I live in cow country and have enough pasture for a couple cows so it should make sense that cows would be a good fit. The issue is the 6 months of the year where hay is fed to cows around here and unless you own enough land and equipment to put up your own hay it is very hard to get a source of reliable hay.
A lot of grain is grown in this area as well but the difference between hay and grain is that farmers grow hay for themselves and grain farmers grow grain to sell (there are no dedicated hay farmers here)
That makes it much easier to source grain as a feed source for animals in my area than hay. So on my homestead I am leaning more on chickens and pigs as I am finding it easier to find local feed for them.
Every local area is different look to see what farmers are selling rather than producing and if you can use that feed stream vs a feed mill or importing feed from afar. Dial into the animal system that works best for you specific location that works for you.
Of course I'm still trying different ways of raising pigs and chickens to find the best system for me.