When it comes to crypto investment, it isn't reliable to focus on a particular coin for investment all through the years.
Reason why it isn't advisable is that, is simply to avoid when unexpected bearish run occurs via the selected option.
But when we diversify and unexpected bearish run occurs in a particular one, we can simply recover from others when the market is favourable to them.
I am holding six coins at my disposal which is BTC, BNB, Doge, Shiba, LTC and BCH, kept at Binance. Some are locked and staked, i just have two coins simply staying in the idle mode via my Binance cryptocurrency wallet.