Balances means that both drivers have a + and -, so 4 connections on the end. So Ever connector with 3 connection points are not compatible. Also 4 connection points 3.5mm connectors are not compatible most of the time because one of the 4 connections is for the mic.
Connections that you can convert to balanced need to be balanced in the first place. For example, 4-pin XLR, dual 3-pin XLR or 2.5mm balanced.
Be aware that there are some adapters out there that convert non balanced to balanced connection type but that doesn't work and you defeat any purpose of balanced and you might damage your decide. You can only convert balanced connections on a headphone to non balanced, but not non balanced on a headphone to Balanced.
Just buy a cable if you want balanced, for mmcx (most iems) Sony offers a nice cable. For something else you will need to buy a cable your from a cable maker probably. The prices range from low as 60€ to like 150€ depending on what connectors you need and what material it should be.