What to buy?

I (M/23) have just graduated and secured a full time corporate job, I would like to invest at least 50% of my salary into ETFs for the long term. I am new to the ETF space but have had quite a lot of experience in the crypto space (I know they're very different).

I have done my own research but would just like a second opinion and advice!

The ETFs which I have gravitated towards are :

SCHG - VOO - QQQ - XMMO and FXAIX

Any advice on splits, other options, good pairings and better diversification would be much appreciated.

Thanks in advance!