i would like to run an agricultural produce processing project on a small scale

I am looking for projects to run using simple technological devices, in the agricultural sector. this project will be operating on a small scale, about 3-5 individuals running it, we are looking for simple forms of processing devices which can be operated manually. The agricultural produce that we are looking for include milk, soybeans, nuts, corn, cereal, vegetables, fruits,etc. looking forward to your favourable response. Thank you.