I just only use myetherwallet, trust wallet, and blockchain wallet. Using these three i guess I can hold anything or any kind of token even not an erc20 coins. Well these are safe i never experience of hacking acticities, there is no kind of bad issues about these wallet. You can assure your safety while storing a big amount of money
Me too, I use myetherwallet for about years now and I did not encounter any problems regarding on it, I am keeping my keys in safe place so that anyone that want to steal my altcoin will not get that, I am using my local bitcoin wallet here in us, to store my btc, xrp, eth and bch. I dont have that other wallet stated by the OP , but Ive have my friend who used trezor and nano ledger and they say that those wallets are great indeed.