For our platINA, low tolerance capacitors are needed for the RIAA stage. You will need 15nF and 22nF capacitors. Ideally you should use MKP capacitors with 1% tolerance. In the past we use two types of capacitors: Panasonic ECQ-P or WIMA FKP2.
The WIMA FKP2 capacitors are only available up to 33nF, but that’s enough for the RIAA equalization. The low-frequency rolloff needs 68nF (20Hz rolloff) or even 470nF (“flat”) capacitors. You can find older green WIMA FKP2 capacitors on eBay (usually in 2.5% tolerance), but you can also buy new production from Bürklin.