First, investigate whether the local market and resources are lacking. .
Second, what is the price and investment cycle?
Third, things are vaguely expensive, and sales are very important!
I raise rabbits, grow my own vegetables and open a shop that loves to bake rabbits by hand.
The feed for rabbits is basically leaves and weeds left by vegetables, and there is basically no cost.
The rabbits we raise are all used for barbecue in our own shop. Except for the rabbits sold in our own store, most of them are distributed to supermarkets, hotels, schools and canteens in the county.
And my own vegetables were given to a restaurant canteen at the lowest price, so they were very willing to accept my roast rabbit, and the market was very smooth.
This is just a way, there are many projects! I wish you an early success!