My Proctor Silex iron is 45 years old and still steams as great as it did the first day I owned it. It doesn't look very good, paints worn off, had to glue a new finger stop on the setting dial. My mother in law was a seamstress for over 70 years, when I married her son nearly 50 years ago, her best piece of advice was, never put anything but distilled water in an iron.
Of course the new irons say 'do not use distilled water.' Because if you did, you wouldn't be buying a new iron every couple of years. Distilled water is water that has been purified from all impurities, you know the stuff that causes lime to build up, etc. In some areas, tap water can be very hard and have lots of impurities. It's water, with no chlorine, limes, floride, sulphur, iron, etc. You can even drink it and cook with it.
I use my iron practically every day, since sewing is one of my very favorite pastimes. When this one goes, I'll buy another inexpensive, heavy, steam iron.....and always use distilled water.
About 15 years ago, a friend of mine purchased one of those expensive 'do not use distilled water' irons, in 18 months it was a goner (so was the warranty). She loved the iron. So she bought the exact same iron, and has only used distilled water, it's going on 14 years old now. Has never given her a 'spit' of worry.
So I have no hints as to name brand, any brand will probably work, with distilled water. I don't think they even make Proctor Silex anymore, I think it cost $5 back in the dark ages when I bought it. :-)