I am not so sure what you mean by "what kinds of unions were formed", but if you're talking about the Civil War then I think the unions were Confederate and Union. The Confederates wanted to run the country with slavery while the Union fought against slavery. Do not quote me on that though.
Labor union – formed to try to protect workers and stop child labor. Tried to stop corruption in industries by improving salaries, making the work environments safer, shortening workdays, and receiving benefits for working.
