what are some good stocks to invest in right now on robinhood?
['Nikola Corp. (NKLA)', 'Workhorse Group (WKHS)', 'Ideanomics (IDEX)', 'Amazon.com (AMZN)', 'Top Ships (TOPS)', 'Apple (AAPL)', 'Tesla (TSLA)', 'Hertz Global Holdings (HTZ)']