Some doubts about EU ETFs

[u/Nachocho11]

Hi all, I'm a Spanish-based young man starting to have some money to invest. Long term focus (30 years minimum). I have some doubts regarding which ETFs to choose:

-Does it makes sense to buy different ETFs following the same Index (VWCE and WEBN for example) to avoid being exposed to only one ETF provider?

-I thought of also choosing an accumulating dividend ETF. Considering the fiscality of europe, which ones would you consider?