So far I've used vim, neovim, cursive and spacemacs and all have solid repl integration. I am generally a vim/neovim user and have been using that for years. It

So far I've used vim, neovim, cursive and spacemacs and all have solid repl integration. I am generally a vim/neovim user and have been using that for years. It's good. Recently, I've been using spacemacs and like it better. Cursive is pretty solid too though if you're an IntelliJ user.