Etoro is totally not recommanded, because there are so many hidden fees. They are well know because they have a very strong marketing strategy on the web, but if you check the fees in deep, it's another story.
I don't say it's a scam but newbies are pretty good cash cows for them.
Since you're francophone, instead of a long speech to explain why, check out
this guy's video (in French). After watching it, you will longer continue to wonder if you should use it or not.
Most of the francophonne (in EU) use Kraken (Belgium included). At least to deposit EUR, since their banking partner is efficient for us. Kraken doesn't have a lot of coins to trade so then the persons usually move to Binance or another exchange.
So the final path: Deposit EUR to Kraken>>buy bitcoins (or another coin)>>and move to Binance (or stay on Kraken)
Bitstamp is also a good alternative.
There is a french sub forum if you want to see what we're doing