If you are going to try to tame a rock golem I highly advise you to bring a couple cannons because if the golem can hit the cannon it will and it will destroy it with just 3 or so hits so bring 3 cannons and a bunch of cannon balls! I learned the hard way. Don’t make my mistake!
Get a flyer go to behavior go to put it on passive go to behavior again put targeting range on its lowest behavior again change the follow distance to its highest and whistle follow find one of these agro it fly a distance in front of it it will get distracted with the flyer place your foundation shoot it with a cannon in the head knock it out and boom you got yourself a golem
It's a bit silly that kibble tames it a lot better than rocks or sulfur because even in the dossier it says that it lives off of absorbing nearby rocks and minerals. So mabey they should make it so you have to feed them a rare mineral like obsidian what if they made it so you could tame one fast and with high effectiveness by giving one a few hundred or few thousand obsidian . or what if there kibble was made out of a combination of ores and minerals .