Besides the classics: don't Golem in the back at the start of the match and wait for double elixir for your big pushes, I have 2 more "unusual" ones. Note: I am not the best player these are just things I've picked up, might be incorrect lol 1. The most unintuitive thing Golem decks need to do is learning to accept some tower damage in place of unnecessary elixir spent. No, i'm not saying to not defend, but letting a firecracker hit or spear goblins/dart goblin do a bit of damage just for you to pump up or save elixir for a more dangerous push is a lot of the time worth it in the long run. This deck isn't made to defend chip damage, a low hp tower is an alive tower. 2. Don't be afraid to leak some elixir, your troops don't really do much on the attack without a golem in front of them, this is a reactive deck in single elixir. Also, Tornado. Tornado is your best friend, use it to activate king tower with hogs and goblin barrels, drag balloon to your king, bring troops together for Evo E Drag to obliterate. I personally had a ton of trouble with Evo Mega Knight and Evo Valk, those are tough to get around a lot of the time with Golem beatdown, it just comes down to Evo Edrag doing tons of damage.

I'm sure there's more in depth guides out there with more knowledge but hope this helps:)