Saving up: Gold + All-World ETF

Hello dear community,

I have a question for you on the subject of long-term saving and gold:

I have 6 savings plans with dividend ETFs running, always two per payout interval with growth ETF and high payout combined. In addition to the DIV ETFs, I also have REITS and BDCs for dividends, which I would also like to expand further. Of course there are overlaps!

I feel comfortable with this and would like to continue saving in this way:

DIVIDEND ETFs | January, April, July, October

$ISPA (-0,23%) + $EXX5 (-0,12%)

DIVIDEND ETFs | February, May, August, November

$FUSD (-0,18%) + $IMEU (-0,33%)

DIVIDEND ETFs | March, June, September, December

$TDIV (-0,28%) + $VUSA (-0,19%)

Now the question arises for me: how can I diversify even further or save in an accumulating manner?

The following would be considered

$EWG2 (+0%) and then also sell tax-free after a holding period of at least 1 year if the trend is positive and generally $FWRG (-0,03%) save bluntly and leave it. Possibly also $BTC (+0,92%) via Bitpanda or similar (not via Neobroker)

What is your opinion on saving the Invesco All-World and gold in addition to the dividend ETFs, as compensation when there are general price slides?