From the coinmarketcap, we could see lot of coins and tokens listed on daily basis. Some have potential to give investors good returns while some are just shitcoins that drain one hard earn money. This year is anticipated to be a bullish year for crypto, what is the best crypto you will stockpile outside Bitcoin. before the closed of the first half of the year.
You are right about some altcoins having the potential to give investors good returns, but you should know that, most of these altcoins only gives return for short term and not for long term, that is, once they get listed and you see a good price just go ahead and sell because a lot of them, after listing and having few pumps will hardly pump again and some might even become abandoned projects.
Nevertheless, to be frank, the best coin that will give the best investment value would be Bitcoin, but since it is out of the question, then I think ETH, BNB, ADA, LTC, XLM and DOT would fit in perfectly, because these coins have good teams, good use cases and what it takes to grow well this year; since this bull run, they have been showing their powers gradually.