If anyone wanted to know (I didn't find much information online) Schaller F locking tuners fit the player strat (2019) perfectly (no drilling or mods) : r/Stratocaster
Schaller Machine Heads F Series Locking Tuner 6 in Line Black Chrome 10560420.01.50 | Reverb
Schaller Machine Heads F Series Locking Tuner BlackChrome 6 in L 10560420.01.50 | eBay