ETF Portfolio Advice: VWRA, VUAA, CSNDX

Hi everyone, I am building a long-term investment portfolio with Irish-domiciled ETFs. My current portfolio allocation is: VWRA: 46.4% VUAA: 35.4% CSNDX: 18.2% I know there is some overlap because VWRA already includes US stocks, while VUAA gives more S&P 500 exposure and CSNDX gives more Nasdaq/tech exposure. I am planning to add around 30% more money to my total portfolio. How would you suggest I invest the new amount? Should I keep adding to VWRA, VUAA, and CSNDX, or should I add another Iris