If you're looking for huge growth potential, check out electric car stocks. These businesses are hard to get off the ground. But once growth begins, it can be hard to stop. Just take a look at Tesla (TSLA 1.15%). Since 2010, its shares have increased in value by more than 23,000%.Looking to grow your portfolio with EV stocks? Here are your best three options right now.Rivian could be the next TeslaIf I had to identify the next Tesla, Rivian (RIVN -2.25%) would be my top choice. The company recently achieved ...