It depends on your preference, but to minimize risk, having more wallets is better, and they should be hardware wallets to ensure they won't be hacked.
Hardware wallets? Except the funds separated are worth it.
i.e worth more than the hardware wallet,
If not I don't see the need of having that much hardware wallet.
OP asked about HODL, so that alone tells us it's worth it for the long term. That's why I recommend a hardware wallet because we're talking HODL here. Otherwise, there are plenty of online options available, and an online wallet would even work as long as it's non-custodial.