I use MacVim for when I need to use multiple panes (when working on a bigger project) or TextMate for smaller/quick edits (TextMate is still the best looking editor for Mac imo).
I also keep meaning to get in to Onivim and recently heard of Doom Emacs, so might give that a try (some positive comments about it on Devtalk).
I use the Elixify theme on MacVim and Textmate.