None, myself. (I have, though, in the past.)
I strongly suspect that the ones that are [U]best[/U] are probably the [I]hardest[/I] to understand.
From my earlier experiences when I used indicators, I found some components of the [I]Ichimoku Kinko Hyo[/I] indicator-set far more useful and interesting than others, but I can’t pretend that they’re easy for beginners to understand - and I should also mention as a caveat that a lot of the information around online about [I]Ichimoku[/I] (especially in forums but also even on websites dedicated to it) is really very inaccurate and misleading, and many myths abound about “how best to use it”.
I’d advise you to avoid oscillators that revolve around concepts of “overbought” and “oversold” (especially Stochastics) which can be very misleading, especially when (as most people do) you try to use them without really understanding exactly what they’re measuring and why.
Moving averages can be helpful for identifying trends, as long as you don’t imagine that they represent support and resistance: it’s always possible to curve-fit a moving average to support and resistance, but that signifies nothing helpful: support and resistance, in my opinion, are much more meaningfully and helpfully identified by looking at where support and resistance [I]were[/I] than by looking at an indicator. Previous support and resistance are obective and factual: they don’t need to be “identified” or “predicted” from an indicator.
(And in case anyone imagines that I’m “having a go at technical analysis” by saying all the above, I’ll mention that I’m not, at all: all my trading is TA-based - I just don’t use the indicator parts of technical analysis.)
I have a question for you also: [I]why have you already decided, right at the start, that you want to use indicators?[/I] If it’s because that’s your perception of “what most people do”, then it may help you to bear in mind that this is a field of endeavour in which overall success-rates, whoever’s figures you believe, are strikingly low, and that “following the majority view” might therefore be [I][U]un[/U][/I]likely to be a recipe for success? In its simplest terms, before you decide to copy what most people do, be aware that most people [I]lose[/I].