Any IG photo scheduler that ACTUALLY posts for you?

I know there's a ton of these social scheduling apps, but I need one for my business which is social media management for clients.

I want to schedule posts, and have them post for me during the week without me having to copy and paste shit, tbh I can do that using a google docs too LOL.

I feel like there aren't any that can do this, and I know FL's posting feature is hella buggy.