i would like to prefer electreum, coinbase, bittrexx and mcap and blockchain also best and secure wallets so you have to invest in to this wallets. they can provide more secure to your bit coins. and keep hold it few years then you get profit. these all sites are good for using so try to use this wallets. if you not like that wallets then try to use wen wallets. they are more secure compare to other wallets.