Thanks for all the advices ! I started to have a look at the market, I randomly look at some coins and got some surprises. For example Telcoin, I watched at their channels and seems they ban all the people that ask questions about the coin !  No need more to know this coin is not worth it haha.
I heard a lot about Neo too, but unfortunately i don't have the story of this coin, seems an interesting one or should I avoid it for any reason ? I think i'll start to stake a bit, is binance the best site to buy it ? I just had a look at the roadmap and updates on their channel and it seems they are serious.
I think i'll try to bet on 5 or 6 coins.
I'm also heard about Polkastarter; i have to look deeper for this one.