Well a lot happened since a year ago. Here is a screenshot of what the top 10 coins were on 20th December 2020:
Now lets compare that with today:
As you can see, the top ten have changed and the market caps have grown significantly.
Newcomers to the top ten: Solana, Terra, Avalanche (and stable coin USD Coin)
Avalanche was $3.31 this time a year ago (34x price increase or 3400%).
Terra was $0.48 this time a year ago (51x price increase or 5100%).
Solana was $1.56 this time a year ago (111x price increase or 11100%).
Leavers from the top ten: Litecoin, Bitcoin Cash, Chainlink, Polkadot.
Litecoin is now $155.75 (approximately a 30% price increase).
Bitcoin Cash is now $435 (approximately a 38% price increase).
Chainlink is now $19 (approximately a 42% price increase).
Polkadot is now $25 (approximately a 370% price increase).
So you can see that in general, there are gains to be made by holding the top coins but there are those out there which can rise faster and overtake these. It’s not to say that some of these may do better at a different time, it all depends on what the hot areas of crypto currently are and the use cases. Solana, for example has quickly established itself as an alternative smart chain for NFTs. Once the native token (SOL) has higher demand, the price increases. There will likely be other undiscovered cryptos out there which have viable use cases such as this. The question is though, what is next?