I am also checking the potential of BNB, GRIN, and RVN, but as per me, before you invest in different altcoins, better to make sure you have Bitcoin and Ethereum as we all know that they are better and stable. But still depends on you how you are going to manage your fund.
Yes, bitcoin is the main investment, and right now, bitcoin has started to increase, so the chance for the price to reach the highest price will come. Ethereum will be the next potential coin, which can increases too as they will launch ethereum 2.0 in the next year. So that can help the price to increase to a higher rate. BNB, GRIN can also increase and will be the next potential coin in the next bull market, but we have many other coins that can rise too. I think we have chosen different coins to buy at this time, but no matter what coin you choose, you need to be careful and make sure to buy at a low price.