Is there any way to buy extra air tips for the sound core liberty pro 2
You may be able to find them at soundcore.com where they have a few accessories for it or contact firstname.lastname@example.org and ask if they have the tips. They have within the year started to provide these. Can even get some of the cases for a 1/3 of the cost if you ever need it.
If you have other soundcore earbuds the ear tips should be interchangeable.