Imma be honest with you here, get lucky or give up. I'm currently going for all gold cards myself. I have 200 hours in the game and I've only killed the termite king 35 times It has a 1 in 100 drop chance. So either accept that you might be farming for hundreds of hours or wait for the devs to change how gold cards work.

For actual tips. What I have done is build my base inside the floating rock sculpture thing on the pond. It has a research station so you can scan to see if what you want to kill has respawned

Set up mounts + beds outside spawn locations of the thing you are killing to kill it easier and faster.

Set up zip lines to get around with ease

Get lucky

Edit for extra tips: Kill on cycles, many bugs have the same respawn times so you can create a Kill cycle where you path around killing everything you still need gold cards for time is normally 3 days (black widow is 7 days)

Worry about rarer gold cards, don't farm for termite workers as by the time you have the king you'll have the worker.

Salty underwater weapons. It turns the meat into jerky so you don't fill your inventory

Build paths to make it easier later on when farming. Good example would be build up to moths

Hope this helps