Budget iems

Hello, I'm looking to buy my first pair of iems, my use would be for casual gaming, watching YouTube, anime and enjoying a bit of music (mainly metal and rock). I've looked around a bit and what grabbed my attention were the kz castor for 20€ and moon drop chu II for 16€. Are there better alternatives in the sub 30€ range, or should I bump up the budget to around 50€? Thanks