This is quite generic advice but it’ll get you on the right path. Moderate to aggressive growth may constitute anything between a 60/40 up to a 95/5 split of stocks/bonds. I’d strongly suggest you select ETF’s (Exchange Traded Funds) and avoid mutual funds. For each category (stocks, bonds) buy several ETF’s 5-10 should be sufficient that encompass a blend of multiple sectors and industries, both US and International.
So far I have enrolled myself into: 1) PIMco total return fund institutional class/ 25% 2) vanguard explorer fund admiral shares/15% 3) institutional 500 index trust- 25% 4) target retirement income 2045 trust select- 20% 5) target retirement income trust select 15%