Pictures of my flooring as well

Since your walls seem to be a warm white, I would paint all trim the same colour as the walls but in a different finish. For example, if your walls are in an eggshell finish, paint the trim in semi-gloss. It is the same paint colour but the finish being different will make it stand out.

I’m not exactly sure what colour my walls are as this is how they were when we moved in.. but just picking another warm white would be okay right?

The popcorn ceiling looks dirty to me. You can paint it, if you primer it with oil based primer first. I would do that, before thinking about paint.

Are you not planning on also repainting the white walls? If not, it might be difficult to match the exact same white, you'll have to do a few tests to come up with the same colour as the walls for the trim paint.

Okay yea I may as well repaint the walls as well. Thanks. As for the popcorn ceiling I think it has already been painted in the past, so would be difficult to remove so might have to just repaint it at some point.

Sorry - I was not online during the holiday and just saw your post.

Your assessment is correct, you have too many whites, but what I don't want to see is you doing something that you will need to re-do in a few months.

Picking a warm white that is a bit lighter than the walls and is a really flexible white is probably your best bet. Use it for all your doors and trim and later when you do the ceilings you can use it on the ceilings as well

Your selection of wall colors when it is time to paint walls will be less limited than if you pick an off white that matches your current walls.

I would test the following and see which you like best with your current wall color.

BM Simply White

SW Chaviot

BM White Dove

SW Alabaster

"The windows and door are brand new installs so I still need to paint the casing..."

Is the casing just primed or is it already painted? If you paint only the casing, the window sashes and mullion, and the door will remain the same neutral (cooler) white.

The window casing is not painted, only primed. I worried about that yes…. Are there different colours of window whites? I didn’t even think of that..

"The window casing is not painted, only primed."

The windows and door appear to comprise a significant portion of the room surface. I'd choose a trim color that either matches the factory sash/mullion/door color or is significantly different. I'd then choose a wall color that coordinates with the trim and sash/mullion/door. I'd paint the ceiling flat white (example).

-- non-expert