Warrants can be bought through any broker. The broker may have to be prodded but they are listed securities so the broker can trade them for you. Due diligence is necessary. I recommended a writer earlier in the thread Ed Thorpe. His hedge fund traded warrants and options and made 20% + every year for twenty years. His book is a good place to learn. Warrants are essentially a call but less volatile and time is not a factor. If you have risk money warrants on new SPACs and troubled companies can be a good gamble. Buffett bought some very cheap ones during the 2008 crash and made billions.