I have a link here for you with a list of good herbs to use with love spells. You need not use all on the list, and you can pick a couple or a few that you find easily attainable, and that you may enjoy.
https://www.originalbotanica.com/blog/h ... ls-desire/
Personally I would not look for herbs for spellwork at walmart. This store is not going to have a decent selection for things like herbs.
I normally would look at a small natural foods shop, there is one local near to me, I like very much that has a wonderful selection of dried herbs.
However if you find walmart to be your only option perhaps buying some fruits and drying them may help? Pay attention if used in a jar spell as well, you may wish to use tightly sealed mason jars if using food goods and check them periodically for mold and such.
Fruits that imo may be used in spell works for love would be those like:
Hope you find this to be helpful.