High School Credit

So, I want to take some classes online during the summer (for high school credit), but, I’m having a hard time finding a good online school. It’s either that they’re cheap with poor reviews or too expensive. I want to take 2 or 3 classes (maybe even 4 depending on the price.)
Here are the classes that I’d like to take:
-Chemistry
-Physics
(Not sure if I want to take both yet.)
-Algebra 2 & Trig
-Computer Science
(My school doesn’t offer Computer Sci. I’d love to take it.)

Please leave some suggestions. Also, if you’ve taken any of the classes listed above, please tell me how you liked them/any advice.

Thank you!
(Sorry if this is the wrong thread to post this)

I’ve taken all of those (including AP Physics C and AP Computer Science). I found physics to be the most difficult of them, because I’m not great at memorizing which equations should be used in which situations. None of them was insanely hard, though it depends on how good you are with math (less so with CS than with the others) and time management (since four math-based classes can be quite a lot).