For ToS, TAS, TNG, DS9, & VOY, there are several possible episode orders. Not listed in any particular order.
one) Airdate order.
two) Production order.
three) Stardate order for episodes with stardates.
four) By season order, and within each season by stardate order.
five) Stardate order, and production order for episodes without stardates.
six) Stardate order, and airdate order for episodes wtthout stardates.
seven) Season order, and within each season by stardate order, and production order for episodes without stardates.
eight) Season order, and within each season by stardate order, and airdate order for episodes wtthout stardates.
nine) By official episode number.
I note that each episode will have about one to two dozen stages of preproduciton, production, and postproduciton. Productio order usually means the order of what studios call production, filming scenes with actors, costuems, & props in sets or outdoors.. Theoretically some fans could order episodes by various stages of the production process, though not all episodes will have the same set of stages - numbers of script rewrites vary considerably, for example.
Then there are some goofy ways of ordering those episodes like:
Alphabetical order.
Reverse alphabetical order.
From best to worst (in one's opinion) episodes.
From worst to best (in one's opinion) episodes.
Reverse Stardate order.
Reverse airdate order.
reverse produciton order.
Etc.
Then there is the "Ephraim and Dot" order, which is no logical order at all. The Short Treks episode "Ephraim and Dot" shows scenes from several TOS episodes and movies that are not in any logical order that I can think of. In any ficitional universe where "Ephraim and Dot" is in the same canon as TOS and the TOS movies, the episodes and movies seen in "Ephraim and Dot" have to happen in their relative order seen in "Ephraim and Dot". Adn that means that all other TOS & TAS episodes can happen in any order without any apaprent logic or reason to it
Or possibly someone can think of a way to have the scenes in "Ephraim and Dot" happen in a different order than they are show in that epsiode. Which a lot of StarTrek Chronologists would like. But even if that is achieved, it will always seem possible that maybe there is no logical order to StarTrek episodes and moveis.
I think that I list more reasonable orders and unreasonable orders in this post than I have done in any earlier post. But I wonder if I have forgotten some orders which I have suggested earlier.
And of course I have suggested that most episodes of a Star Trek, or othe rlong lasting tv series, happen in alternate universes to all or almost all the other episodes. Of course putting the episodes in alternate universes will have little effect on theories of their relative dates.