Games that have good side missions

Seems like the art of the side mission is hard to master in video games. Which games do you think do side missions right, SW? I think Skyrim had great side missions, but the main mission wasn’t that great. Are there any games that do both great?

Any help appreciated.

I didn't find the right solution from the Internet.

reference:
bit.ly/2FyEP5W
Web Video Cost

Thanks!