Can I just say, about jumping and biting - we wear clothing that is not too enticing (fluffy socks and jumpers, skirts - I am resigned to dull fleeces/jeans/wellies), and we don’t greet her unless she is feet on the floor, preferably sitting. When we come into the room, she is not our first object of attention. If she jumps up, she is ignored until she calms and sits, then she is gently love bombed. Same for when she is quiet and calm at other times in the house. She is ignored when she barks, unless it becomes clear she needs to go wee!
I have worn ski socks to protect toes and ankles.
If she gets bitey - mostly when she was younger - attention stops. I allowed her to mouth my hand only when she was having a cuddle and was not rough play, and I could feel her adjusting pressure in her jaw so as to not hurt me. She learned what was gentle and what was too much.
I don’t think you can stop them biting altogether, as they mouth - seems to be an affection thing? And yes to having toys handy.
Ours being a very excitable pup, we stopped play in the house to foster calmness in her, but she does have chew and squeaky toys, and treat dispensers she can interact with by herself when I’m cooking or doing something else.