I too was going to ask, "what kind of support are you looking for"?
Because depending on what your needs are, there are different types of groups out there and people can maybe help to point you in the right direction.
For instance, if you're struggling with being a single parent.
If you're struggling with the fact that you have four young kids and you just feel a little overwhelmed.
If the kids are struggling with their school work or some kind of academic issue.
If you're struggling financially to pay the bills.
Etc. It depends if the struggle is an emotional need, an academic need, a medical need, a basic need, financial need, etc
But I saw that you said "Everything, but I guess if I had to narrow it down, getting the to school on time, getting them up and ready in the morning, keeping the house clean and keep up with the house work, getting them to sleep at night"...
Well that kind of sounds like you need to live in nanny or something if you need someone that helps to get them up and ready in the morning, get them to school, clean your house, and get them to sleep at night. And I don't think you're going to find any volunteer organization or anything else that's going to come to your house and give you full day support, I think that's unreasonable but I don't know for sure. Maybe something like that exists? Does anyone know?
Perhaps you don't need help with all of those things perhaps by talking it out here, other people can help you to come up with a plan to assist you with the parts that you're having trouble with now but can be corrected on your own. Like for instance, if getting them up in the morning is tricky, making sure that they've had an earlier bedtime, that all their clothes are laid out, that their lunches are ready to go, and that their breakfasts are prepared as grab and go, that might make your morning a little easier. Same thing with having a bedtime routine put in place, with clear expectations about what needs to be done by what time, and sticking to it so that your evenings go well but that your mornings go even better.
As for the cleaning, yeah I can imagine a house with four young kids does need to be cleaned all the time and it must be overwhelming for you. Maybe there is some kind of assistance for this, I don't know, but there are so many YouTube channels out there and blogs and posts and advice about how to do "10 minute cleans" (for instance) in which you're getting a whole lot of the most important things done in a small amount of time, as opposed to getting bogged down in the details.
Sometimes a reframing of how we attack a certain task can lead to magnificent results. Not sure if that could help you but I guess what I'm saying is if you clearly articulate what the problem is here, there are more than enough people on this forum who I'm sure would be happy to give you some helpful advice.