Investment advice for 200k

Hi all , In my savings I have 200k euro.

Which investment option would you recommend?

Option 1) Buying bonds? Which broker/bonds do you recommend?

Option 2) Full amount/one time payment with KeyTrade on 1 ETF , like SP500 (VOO)

Option 3) Split the amount & diversify, buy 8 ETFs, (e.g 25k for SP500, 25k for MSCI Europe etc.)

Option 4) Start with small monthly payments, eg 2k euro/month

Thanks for the feedback.