If you are looking for a wallet on your PC, then Bitcoin Core is the best if you got around 200GB free space of hard drive to spare. It is most secure and helps the network.
If you don't use core, then they aren't your Bitcoins. It's the same as money deposited in a fiat bank.
If you don't want to tie up 200Gb, then run a pruned node. You lose a few functions, but save a lot of drive space. If you haven't got the drive space available, then use an external SSD.