witch cable will work on my ft-890 to my laptop?
The cables for your radio available in store rely on mic/headphones connection:
As you saw in other posts on the topic, the better option would be to use accessory connections in the back of the radio. This kit is not available in store, but you can either homebrew it yourself or ask somebody else. One of the options is checking with Les at https://hammadeparts.com/ If there are other hams willing to take on this king of projects, please reach out and I’ll add them to the reference list.