I have some lesser-known altcoins. What’s the process for converting them to fiat, and is it better to convert to BTC or USDT first?

Most altcoins don’t have direct fiat pairs, so converting them to BTC or USDT first is usually necessary. Then use an online crypto exchanger to convert to fiat. USDT is often faster and cheaper to move around. Make sure to avoid swapping through too many coins or platforms—it can eat into your profit with fees and rate slippage.