I'm a huge fan of KIDD Innovative Design barrels for the 10/22. I have a fluted bull barrel on one of my 10/22's, and it's fantastic. They are bored and rifled by Lothar Walther, and then hand lapped and finished in McQueeney, TX by KIDD. They make several other excellent parts for 10/22's as well.
https://www.kiddinnovativedesign.com/Heavy-Rifle_c_17.html
https://www.kiddinnovativedesign.com/Heavy-Rifle_c_17.html