Collocations for farmer - noun

big, large, large-scale
small, small-scale
a new plan to help the small farmer

peasant, tenant
poor, subsistence
Settlers were primarily subsistence farmers.

rich, successful, wealthy
gentleman, yeoman
Jefferson's ideal of a nation of yeoman farmers

family (esp. AmE)
independent
commercial
hill (BrE)
rural
local, neighbouring/neighboring
organic
conventional
A lot of conventional farmers have converted to organic.

arable (BrE), grain (AmE)
livestock
dairy
cattle, chicken, fish, hog (AmE), pig, poultry, sheep, etc.
coffee, corn, cotton, peanut, potato, rice, soya bean (BrE), soybean (AmE), tobacco, wheat, etc.
truck (AmE)