As you know COMKORT exchange is closed, so currently XDC has no online crypto-exchange.
You can mine solo (see the first post how) and use the main pool http://pool.xedoscoin.com.
You can support Xedoscoin to get on https://c-cex.com/?id=vote by voting.
I will keep you informed when some promotion of the coin will go on.
Currently android and paper wallets are trivial tasks, so if someone want to help with this - will be Bounty for sure.

BR
1Lef