If you plan for long term holding, Electrum for both PC and mobile will do the job. You will hold your private keys here so rest assured that your coins is safe and it will just lose via human error.

If you will do some regular used of your bitcoins or making withdrawals into fiat, search for your local exchangers there with good reputation since it's more way easy to access than to use international exchangers like Coinbase , XAPO etc to deposit and withdraw bitcoin.