There will be lots of possibilities that some coins might explode in 2021 or early 2022, and might be best time to buy. What we can really start from now is its ever-increasing movement. however, I also don't want to guess what coin it is. Because we will never know. Everything in crypto is an uncertainty that will remain secret until then.
But here's my top coins that I think would be best to invest now as they will explode soon
1. Ethereum
2. Cardano
3. Solana
4. Polygon
5. Upland
6. AnRKeY X