Is there an easier way to buy X-Cash all the exchanges its listed on is not trustworthy
There is no other choice. currently, you can only buy on the exchange.
If you don't trust an exchange that lists Xcash at this time you may have to wait for Xcash to be listed on the bigger exchanges, it may take a long time
STEX is currently the market that is most actively trading Xcash.
Even though only got a Trust Score of 5 from Coingecko, in almost two years of using this exchange I have never had any problems