If you think getting RP'er through free agency is a good idea, here is the record or recent season signings: (I'm not leaving anyone out. This is the complete list of the RP'er getting more than $5M.
2020-2021
$54M/3 Hendriks 71 IP, 0.732 WHIP, 2.54 ERA,
$17.5M/2 Treinen 72 IP, 0.982, 1.99
$15.5M/2 T May 63, 1.261. 3.59
$12.5M/2 P Baez 4 IP
$11M/1 Rosenthal 0 IP
$10.5M/1 B Hand 43. 1.148, 3.59 (was DFA'd)
$7M/2 K Giles 0 IP
$6.3M/1 A Colome 65 IP, 1.400, 4.15
$6.0M/1 A Bradley 51, 1.431, 3.71
$5.5M/1 K Yates 0 IP
$5.0M/1 A Bass 61, 1.288, 3.82
$5.0M/1 J McGee 60, 0.905, 2.72
$5.2M/2 J Wilson 34, 1.412, 5.29
19-20
$40M/3 W Smith (14 IP then 68, 1.095, 3.64)
$34M/4 Pomeranz (19 IP then 26, 1.083, 1.62)
$24M/3 W Harris (18 & 6 IP. 1.609, 4.56))
$14M/2 C Martin
$11M/2 D Hudson
$10.5/1 Betances
$10M/1 Treinen
$9M/2 Stammen
$9M/1 Glausman
$8M/2 Smith
$7.5M/2 Diekman
$6.4M/2 Yamaguchi
$6M/1 Cishek
$5.0M/1 Romo
$5.5M/2 J Rodriguez
$5.0M/2 P Johnson
18-19
$43M/3 Kimbrel 96IP in 3 yrs, 1.139, 3.67
$39M/3 Britton 99 IP in 3, 1.216, 2.65
$30M/3 Familia 146 IP, 1.555, 4.62
$27M/3 Ottavino
$25M/2 A Miller
$25M/3 J Kelly
$23M/3 D Robertson
$18M/2 Herrera
$15M/2 Soria
$10M/2 J Wilson
$9M/1 Cahil
$8.5/1 Cody Allen
$8M/2 J Chavez
$7M/1 D Holland