i’m newbie here but i try many wallet and till now Blockchain.info Best one Because it support two coins and have low fee
The fee is decided by the network not the wallet you're using (in most cases).
If you want to store a high amount, I suggest you look at something like electrum instead (
www.electrum.org/#download) which is a bit more secure as it's software on your computer instead of something that's running on the cloud - for small amounts blockchain.info is fine.