Looking for feedback for my plan for stressed dog and magnetized baby

I have a 9 month old baby who is crawling, standing, and cruising on furniture and a 10 year old hound dog who is cuddly, stubborn, mostly lazy/chill, and has gotten a bit grumpy with other dogs as he ages. My baby is obsessed with the dog and he is clearly getting stressed. He makes a warning moaning noise that I take as a precursor to a growl, and he has growled a couple times. I place myself as a physical barrier between them, and baby just tries to crawl and reach around me to get to him. I move her to another part of the room and try to engage her with a toy, this sometimes works for a short time before she beelines back for him. We go to another room, dog follows us – he has spent his whole life being in the same room as me whenever I’m home so even when he’s fed up with baby he still wants to be where the humans are.

I feel so bad, I obviously don’t want a bite to happen and I also don’t want my poor pup to spend his twilight years feeling neglected or stressed.

Here are my ideas: 1) continue to move baby away and engage in another activity/use language like “dog needs a break”. (Though I know it will be a looong time before she gets impulse control.)

2) we have a dog bed on the side of our bed that he never uses. Baby rarely goes in our room, so I could teach dog to go there to take a break and give him a long lasting treat when he does. (Problem with this one: what do I do if he comes right back as soon as the treat is done? I feel bad that the bed doesn’t have a view out the window, his favorite thing is looking out the window)

3) I could put a safety barrier on the couch to block part of it off so he can sit up there and be close to us when we’re playing in the living room? (Problem: once baby can climb up the couch this won’t work anymore, but maybe by then she’ll have learned a bit? Also I would be taking away some of her space where she’s learning to cruise along furniture, but that’s better than getting bit!)

4) I am also trying to spend time outside of the house with baby as much as possible, dog is used to both parents working before baby came so I don’t think he minds this as he just naps and barks out the window, but it is a bit harder to get out with baby when it’s super cold.