I would never invest that much money into alt coins xD it just sounds like too much money. But thats just me im very sceptical and wouldnt risk that much money. But hypothetically if I had a lot of money I would probably invest in blockchain gaming and DeFi. For example ENGN and AXIE look good for the blockchain gaming and ReFi for the Defi (i keep part of my ETH and BTC on ReFi they have some good rewards). I probably would go all in on one altcoin find a few projects that you like and that look good and stable.