Unfortunately none of the above choices have a minimal interest.
Both Etoro and Zulutrade have plenty of kamikaze traders, risking as much as 60% -80% of their balances sheet. This is understandable considering their balances are worth as much as few hundred currency units or even less. You could be lucky in entering in a lucky moment for the trader's kamikaze strategy. But you have to consider the opposite, just to see your all monies going out of window.
On the other hand, Darwinex is a honest company, but they have a serious problem with its process. Almost 95% of its traders are algorithmic. So, the broker applies their own risk control algorithms, aimed at 'normalize' the risk measured by VaR at 20%. Unfortunately this process has plenty of failures as you are not prevented from having as much as 40 or 50% drawdown in a matter of few days (there are several real examples). So, also it isn't suitable for your hard earned money. May be you could wait some time more as they are currently working in order to rethink and renew this process.
For all the offers in the market, and considering your are a beginer with careful concernings, you could try Roboforex CopyFX system, with a Cent account. If I'm not wrong, a few dozen of usd/eur are sufficient to open such an account. Surely, this isn´t a perfect system, but you are risking very small ammounts and at same time getting a sense of currency markets and study their trades/techniques. Also it is cheap as you don´t have to pay for keeping your platform running 24/24h (such as a VPS for MQL5 signals) and, important, only pay for trader's fees only in case of profits.
Several months later, with more experience, you could reevaluate this option or other options in play. I hope, by this way, this experience wont cost you too much.