Electrum (for PC) and BlueWallet (for mobile devices). Right now I am also in the process of installing Bitcoincore, and the process is only 11% synchronized (when this post was made). Maybe I'll use Bitcoin core about 2 or 3 weeks later.

The safest way to store cryptocurrency assets is, never let other people know the seed phrase or private key that binds your wallet. Keep it off the internet as much as possible and never let anyone know where you store your keys.

Some people use paper to write their seeds, or some people engrave them on iron plates to make them safer from fire and water ....and store them in their secret lockers. It all depends on each individual, even if the balance you have is very small, at least you can start to be disciplined in securing your wallet in a slightly more thorough manner.