For temporary storage that don't aren't CEX (rejoice to the people that are right all along, you've converted me), I'll be putting my bitcoins in either TrustWallet or BlueWallet and if there's anyone here that can provide me some other wallet because I'm scared of the 1 star reviews of those two wallets.
Even for temporary storage I woulnd't consider Trust Wallet as its a closed source owne by Binance and its only a decent solution if you need a hot wallet where you plan to store no more than few hundreds of dollars worth of crypto.
As of another alternative for (temporary) bitcoin storage, why not Electrum?