You can try this method,
1. Sell your AAVE for USDT (you must try to make sure if USDT TRC20 already supported by bittrue)
2. Send your USDT to the bittrue
3. You can buy XDC with your USDT
https://www.bitrue.com/trade/xdc_usdtOP can try this on how to deposit in Bitrue (
https://www.bitrue.com/exchange-web/article/faq/How-to-deposit.html)
Yes, much better to use different blockchain networks other than Bitcoin/Ethereum to save more transaction fees. Using USDT in TRC20 (Under Tron network) is the best option too, but make sure *DOUBLE CHECK* if Bitrue supported a TRC20 USDT.
If not supported, try first to convert your Bitcoin/USD to other coins, like XRP/DOGE/LITECOIN just to transfer from Binance to Bitrue, just to save transaction fees, and after your funds arrived in Bitrue, you can trade it now to other coins.