Can these tokens created in Stellar be stored in a wallet hardware similar to ERC-20 tokens? Well, I see Ledger Nano S has Stellar support.
yes, of course you can and everything is very convenient advise you to use this option.
in general, the development of this project in recent years more and more bypasses other famous projects where, apart from the hyip, there is nothing interesting in the code.
Ledger Nano S has Stellar support but can we also store stellar blockchain based tokens on Ledger Nano S ? like eth based ERC-20 tokens
also needs to know that which web wallet is best and secure for stellar long term holdings. also wants to know that is there any software app like metamask for stellar?
Told twice, YES. All your tokens, anchors and native coins are associated with your Ledger S private key.
When you say web wallet, you mean one not using Nano Ledger? Anyway, go to Stellar.org and you can see all the wallets available.
https://www.stellar.org/lumens/wallets/I would suggest StellarX which doubles as both a wallet and an Exchange Client. It also supports Ledger or you can create a keypair. They don't have access to your private key, although, it is stored encrypted (with your password) on their servers. So, use a strong password.