The first thing I noticed in a wallet was open source. If it is not open source, I hesitate to store crypto in the long run.
If the best wallet supports a lot of crypto, I think the unstoppable wallet that I will recommend.
There is a discussion of discussion about Unstoppable Wallet to attend any discussion that helps increase knowledge about it.
It is good to use an open-source wallet for better safety options. However, a wallet has been an open-source wallet is not enough to guarantee the wallet as the best or good crypto wallet. Mind you, this is always a new development in the tech world every day and if the wallet new, or all source code are not totally check there is still a chance that the dev team have a backlog, or something that consumer their wallet user internet data for crypto mining (which is something that some dev do now)