Yes, I recommend my friends to invest only in the top 100 altcoins. Better if they invest 70 % just in Bitcoin. Newbies should first learn a lot about the cryptocurrency market before investing in new projects.
Not top altcoins are safe. Even some scam & shit altcoins already in top 100. Few days ago SushiSwap CEO scammed & Sushiswap is now 60 no position. Better to invest wisely not invest by coins rank.
Like Sushiswap i would stay away from that project cause it definitely a scam and the owner did run away and came back to take more more from investors. Better to make a safe plan and invest on what you could afford to lose as we dont know what is the safer projects that will not turn to scam or perhap can drop easily at the market.