There are lots and I would say its not actually alternatives since I do consider those things as main wallet and online web wallets are just alternative or add up on the option but storing bitcoin on these wallets is somehow risky though this is why I would suggest Bitcoin core as my main but not all people would really prefer this thing because downloading the entire blockchain will really be pain in the ass which is actually true if you do have crawling internet then skip this one and use electrum instead.