So many big names claims that Tether is safe. But if you have an option to choose stable coin, try to avoid Tether. At least the tether is highly suspicious of not having enough money to back all tokens.
What did you imply by writing "highly suspicious of not having enough money to back all tokens."? If you have time, please explain it a little bit and in more details. If this is the truth, it will be unsafe, not only for USDT, but also for bitcoin because USDT partially used to support BTC price.