Not every youtube is going to shill for any project just for the money especilly when they have got such huge community but he mentioned that that video is for entertainment purpose not an investment advice.

Well thats right its only for entertainment and not an investment advice but for some people they will take it seriously and will follow what has been said.
You know the mindset of others who are lazy to make their own research, they will believe it.
Investing in crypto is risky so there's no such thing as safe however I think if we're talking to reliable coins in the market the best option is the top coins.