Like the majority, it's best to have a hardware wallet if the purpose is to keep your bitcoins for long term. There's also handful desktop wallets that are for free but they're good to use too.

This suggests the wallets for desktop: https://bitcoin.org/en/choose-your-wallet?step=5&platform=windows

It includes, electrum and the others that I haven't used. Only two on that list that have been used by me, wasabi and electrum.