Some of my friends are doubled their portfolio by investing on Chainlink. I want to see chainlink at least at $30 on 2021.
Agree. Both are potential.
You have still chance. Better late than never.

For the record:
CoinmarketcapLINK Current Price $13.20
LINK circulating supply 395,009,556
LINK Total Supply 1,000,000,000
DOT Purrent Price $5.19
DOT Circulating Supply 884,916,499
DOT Reported circulating supply 904,869,778 DOT
DOT Total Supply 1,018,939,607 DOT
Technically, LINK is more potential to increase further beyond $30 in the future. I don't know when. Sorry