Simple docking station sounds like the solution. We us these all the time to get pictures files old outlook data files etc off of customer pcs that are upgrading to new PCs.
Just remove the old harddrives and use this to copy the files. Depending on level of security on the drive could take a while to get the directories to open.
Sabrent USB 3.0 SATA/SSD 2.5" and 3.5" HDD Docking Station with 3 USB Ports (DS-U301) https://www.amazon.com/dp/B07H11GGKW/ref=cm_sw_r_cp_api_glt_i_SPVNCT97H9S6DEYRZPKM?_encoding=UTF8&psc=1