Jumping up on very sick husband— looking for help

Hi, I’m looking for input on my new-ish adult rescue lab who jumps up during the following circumstances: 1) coming downstairs to eat breakfast/dinner, 2) entering my spouse’s room downstairs — he’s very sick and spends most of the day in bed. 3) being let out of her crate 4) greeting someone at the door.

The first two circumstances are the most challenging because she is the most excited. We have to remedy this ASAP because my spouse is extremely sick and she has knocked him over.

So far, we are addressing this by immediately and repeatedly asking her to sit so that she doesn’t have the opportunity to jump up. This has helped. But she still does jump up quite a bit. I’m wondering if there is anything else I can do to facilitate calmness during these times or if there are other techniques to prevent jumping up. It seems like the high level excitement is a big part of the piece. we have another dog so doing a treat scatter is not possible d/t mild resource guarding.

Thanks y’all!

Edit: one area of improvement is that I think I could be a little better with marking her good choices with a “yes” but other than that, I am at a loss.