"DongYan" and "Xia Yan" are both good choices, and each name contains a word.
Moreover, people who know will know the rhyme of this store name at a glance:
Cordyceps sinensis is in cold regions, and bird's nest is in subtropical or tropical regions. The name "Xia Yan" sums up the meaning of two herbs. I suggest going to Xia Yan.
These two names are relatively simple to add up, so why not?
I am willing to serve you.