Have to share a hotkey for making internal links with Autohotkey.
Select text, then hit Ctrl + L
(choose your own)
FYI, #IfWinActive is so this only activates inside of Obsidian, not other apps.
; Obsidian
#IfWinActive, ahk_exe Obsidian.exe
$^l:: ; Internal link
Send,^c
ClipWait
Send,[[^v]]
Return
#IfWinActive