I'm using Altium as my major tool for professional electronic design but I looking for something LESS expensive. And I've already done one paid project on Flux.ai. If you beginner in electronics I recommend you invest your time in something progressive like Flux rather than KiCAD or EAGLE. Yes, KiCAD and EAGLE are good tools and you will still find a lot of projects for a few years before they become complete dinosaurs but at some point, you will hate working in them(oh, gods, how I hate EAGLE, sorry for everyone who loves it)
