Pretty sure nothing in the US is allowed to have lead in it anymore.

Kohler is a top-quality brand. They are all I use.

If you are strongly concerned, read up on lead regulations in the US. The term "lead free" really only means it has less than a certain percent of lead in it. Your water spends very little time traversing your faucet. And, you can always let the first second of running water go down the drain.

We used Brizo throughout the house we built in 2021. We've been using everything for 2 years now and no issues with the Brizo fixtures.

I used Brizo in chrome finish throughout the house built in 2023. No issues, and although it’s early the Finish is holding up as I expected.

Every plumber I’ve talked to says go with Delta. We did and have had no issues (but it’s only been a few month since we moved in.)
Brizo is owned by Delta, so another vote for Brizo!

Brizo is the Delta fancy-pants brand. The Brizo T60P220-PC is $450 while the similar Delta T14259 is $150. Both have lifetime warranties. The Brizo R60000-UNBX rough-in valve is $65 while the identical Delta R10000-UNBX rough-in is $41.