As a former user of ISO layout keyboards, IMHO a great quality of life improvement is to switch to ANSI.

A US ANSI keyboard has all programming symbols in the right place. Yet it makes Latin/Nordic and other symbols easy to type via compose key (e.g. Right Alt), or similar.

For example, Compose a + ' = á, a + e = æ, o + / = ø, s + s = ß, s + o = §, etc.

An annoying issue is that most brands won't sell ANSI keyboards abroad. Apple is one of the few that get this right. A trick is to import from countries where ANSI is the default, such as NL.