suggest some easy ways?
As far now the safest way to keep our bitcoin is in the hardware wallets but it is not available for free,so if you are looking to store more than one bitcoin than you can afford to buy a hardware wallet which cost about less than $100.
Or you can use electrum wallet one of the best wallet and it is available on android platform too,so you can install electrum on your desktop and move you bitcoins to there and now electrum offers segwit address too so you can have cheaper transaction fee.