I get asked all the time about how to train your dog how to walk on a leash without pulling or the basics of nose-work or other things like that.
My favorite online resource is by Nate Schoemer. He and his team have put together a string of videos that are easy to follow. I would HIGHLY recommend watching them.
This is a video on how to start leash training:
This video is about how to teach your dog not to jump on you
This video is about how to teach your dog to walk on a loose leash
And there are 100s more to choose from. I would HIGHLY recommend looking at this channel for any training needs you have.
Enjoy your dog. <3