If this corrective (a),(b),(c) in Wave 4 corrective move plays out as a measured move then $21617 looks likes a good 1:1 move as per chart.
Calculations to arrive at the target below:-
BTC Measured Corrective Move 16/02/23
25270 - 22770 = 2500(9.89%)
23990 - 2500= 21490
23990- (23990 X 9.89%) = 21617