Rockshox Pike Scratch

If it doesn't leak oil or anything, you always have the option of just leaving it as is. "If it ain't broke don't fix it." Otherwise, clear nail polish is an option. You'll want to extremely carefully sand or file the rough edges off.

You can also buy just the upper half of the fork. You don't need to replace the entire thing.

The best solution (value and quality) is to replace the Crown Steerer Unit (CSU).

There are other fixes such as nail polish but you always run the risk of tearing the seals.

The work isn’t much difference to a full fork service.

You can get the part number here: https://www.servicearchive.sram.com/sites/default/files/techdocs/rockshox_spc_-_rev_f_0.pdf

You will also need a new service pack, fluids and star nut.