this [1] is what i see listed as amazon's choice. it's got 4 stars, and it's in stock. the reviews aren't amazing, but it looks like a competent solution in a category full of terrible options. the same product is the first result of a google search for the same terms. It looks to me like amazon's choice is probably the best option.

[1] https://www.amazon.ca/Belkin-Audio-Charge-Adapter-iPhone/dp/...