Ear bud tips are pretty universal and there are a lot of distributors you can purchase replacements from. The one “gotcha” I would be mindful of is the fit in the charging case.
Here is a pack I have used as replacements, there is a large assortment of styles and sizes for a reasonable price.
Even though the Wyze Pro Buds speaker is oval the round fitting on the tip does fit over them.
There is also a Wishlist item out there for Wyze Replacement tips
I also tested a number of other styles with the Wyze Pro Buds. Starting here reading down.