But in any case you can just buy the ETFs, either in the US stock exchanges (same as you would buy your FB or AAPL shares), or they also have some UCITS version trading in european stock markets.

The UCITS version may have some advantages depending on your country of residence (since they are EU based, and follow EU mutual fund regulations). There are also some downsides (e.g. you might be losing a bit of US tax that might be recovered otherwise depending on dual taxation treaty). Also US stock would be subjected to potential estate tax in case of death (detail will also depend on dual taxation treaty).

Overall the largest difference between the various options is going to be tax, and since it can be significant, it is worth spending some time.

As to the original question, there are also a lot of other similar ETF to the Vanguard ones (e.g. from BlackRock/iShares/UBS/etc.). The fees will be different, but as mentioned before, the tax implication might make a bigger difference.

(you can research the ETFs on sites like justetf.com)

Edit: and depending on your country, some special retirement account might have much much better tax treatment, compared to simple ETFs, also worth researching.