What are your favorite budget-friendly vitamin C serums?

I'm still on a hunt and found these 4 options from watching a 💩 ton of YouTube & reading blogs and reddit threads
It's not technically Vitamin C, but it helps with brightening and hyperpigmention. And stupid hydrating. Love this stuff... it's the De Palma Oil by Ode to Self Skincare. They're a new brand, but it's so dope!
Isn't that crazy??!!
Did you decide on one yet?! 😏
Not sure it it has vitamin C in it though
Glossier just dropped their new serum today!!