I heard of the proposed Captain Sulu series but not that a video was made.
I’ve heard of an entire fan made series but I haven’t seen it.
Well, if you have the time to watch what I linked, take a look.
They’ve filmed over a dozen episodes in this group. Unfortunately, they did two eps where they made Kirk’s nephew Peter a Peter-puffer and he wanted Uncle to gaymarry him to an officer poof (this was done a decade before STD). Ick.