Well, feedlots are to humans a very dusty, smelly place, but they do, at least here, pay fair and have health insurance and after working for them some time, pension participation.
Good feedlots have people working there for three generations now, others have a large turnout.
Hope you find one that is well run and worth to work for and learn.
If working as a pen rider, they will pair you with an experienced one for a while before they give you a section of your own, so you can catch up with what you may lack in knowledge in a hurry.
You have to help ship cattle when the slaughter plant needs them, at times that may be 3 in the morning, or whenever.
Feedlots have been losing tons of money for three years, many have closed, but then cattle prices turned around last fall and have not quit climbing since and right now are making plenty, although it will take some years to get back what they lost.
The drought didn’t help by cutting cattle numbers down greatly, one reason why they are now so high.
I expect most older feedlots that have lasted thru the last bloodbath are good ones, well managed and worth working for.
Do you have your own horses that will work for feedlot pen riding?
If not, you may have to scramble to find some, three generally make it work for you.
Most feedlots don’t furnish horses, each pen rider has to bring their own.
If you know how to weld, you may find work in pen maintenance.
Then there is the mill, or driving a feed truck.
Just go see what you think of it all, nose pin helpful, but not necessary if you work there, you get used to the smell.