bitcoin and ethereum are clearly idolized, because they are very attractive investments but unfortunately the funds needed are of course not small if you want to invest in bitcoin and ethereum. so we also need alternatives adapted to the funds we have. The altcoins on the best ranking are very decent and up for grabs, but I highly recommend BNB, because the trust in them is very high and it should also be remembered that BNB in 2021 is an altcoin that is rising quite sharply. not other altcoins are not good, just analyze yourself from the best ranking, what suits your funds.
I agree that giving a name and saying this will go up is a risky business and everyone should look for it themselves. Saying "how" you can find a good one is acceptable, which is basically doing your own research and making sure that you are investing into something that is not a scam and has a big community and a great roadmap.
But that doesn't change the fact that we are talking about something that is not entirely profitable for everyone sometimes, yet at least you won't lose all of it if you found one that is not a scam. I fear there are scam projects even in the top 10, so you need to be careful. Bitcoin is the only one I can support with a name, otherwise all others are risky to shill.