Coinbase shouldn't be charging you for a SEPA deposit! On the other hand, if you use a credit card that's different.
I will be writing another post about the altcoins exchanges (like Binance) that I use. Mostly Binance is the biggest and most reliable, but there are things that are not listed there yet!
On coinbase I buy ether straight from the bank and for every 100 they charge me 4
Would you save on those fees if you deposited via SEPA, moved the fiat balance to coinbase pro, then purchased your crypto there?
I'll have to ask my son about that; but, I may have put in all the money I'm going to now. I've got a third now of what my all my money in fiat
Probably more than enough! Risky business this is....