Making noises and overheating

If you need to keep topping up coolant, that would mean a leak somewhere and presently the leak is still minor and definitely it can only get worse if not rectified.

The gurgling noise is most probably air trapped in the heater core. It would result in the heater not working. You would need to top up coolant and bleed the system to eliminate this.

Check for signs of coolant leakages. Coolant would leave behind some sort of powdery residues when dried up. Most common leaks for Hyundai vehicles would be from hoses connected to the thermostat.

A pressure test would make it easier to detect the leak.

Check and ensure the cooling fans are working and come on when required.

The cooling system comprises many different components and any fault with one of them would cause overheating. What I am advising is based on the symptoms you have described. Listening to possibilities is a waste of time.

You need to diagnose the problem and find the cause.

When you add coolant, you need to bleed the system as well as there will be air trapped in system and under such circumstances it would continue to overheat. Did you close the radiator cap immediately upon topping up the coolant? If yes, it is not the correct procedure. After coolant is full, start the engine with radiator cap open. If coolant shoots up very high, it is a sign of a bad head gasket. If it only gushes out briefly, let engine run and keep topping up till level stops dropping.

If the cooling fans are not working, it would definitely result in overheating when driving slowly or at idle. While driving, moving air helps to cool the coolant passing through radiator.

Spewing everywhere indicates overheating and it could be due to a bad radiator cap.

You are welcome and glad to know the problem has been rectified.
Have a nice day.
Feel free to drop by if you have any questions.