Tips for beating melters?

Want to open by saying I'm enjoying the game quite a lot so far, including the whole learning process. I've picked it up on sale just last week and am currently hovering around 900-1000mmr. Obviously I'm still learning at this stage but one of my biggest issues atm is what to do against melters?

It feels like they can be paired with any anti swarm unit (vulc, scorp, storms) and once they hit a critical mass they're unstoppable. The best success I've had is just trying to add melters of my own because it feels like nothing else kills them fast enough.

So if anyone has some general advice that would be greatly appreciated. Also looking for content creator recommendations to help learn off if you have any suggestions.