You can configure Helix to behave a lot more like vim quite easily, beyond the default keybinds which are already quite similar. You can even revert to vim-style normal/visual modes, rather than Helix’s “select by moving approach” if you really can’t stand that.

After being a vim then neovim user for many years, I fully made the switch to Helix, using some options from the config I linked, and there are only a few minor things I miss.