A bingo app but regulation has been painful to say the least I'd like to try crypto, which coin/chain/wallet is the most used? USDT on TRX? Binance? Any advic

A bingo app but regulation has been painful to say the least I'd like to try crypto, which coin/chain/wallet is the most used? USDT on TRX? Binance? Any advice is welcome as this industry is definitely not easy to enter