What coin can you buy on Coinbase if truly purchasing on Coinbase is fast, maybe bitcoin, then buy bitcoin, convert it to a coin you can send with low fee like litecoin, monero or any other coin (or if possible to buy the low fee coin directly), make sure the coin you converted it to is supported by Binance US. Or is both exchanges support Bitcoin via BEP20, then send through BEP20 which has a very low fee. You will send from Coinbase to Binance, convert the coin sent to binance to BNB, send it from binance to a noncustodial wallet.
Is there a way to know the fees for each coin? I was thinking Litecoin or Tether. Both can be bought on Coinbase...Of course, I'd want to go with the cheapest, fastest, and one that is supported on whatever platform I am sending it to. Is there a transaction fee when you convert from one coin to another?? I know I have to pay to send the coin(s) to another platform...