To expand on some of the above - and note please that your son will be the beneficiary of a petition you will file for him, not your derivative.
First, again, please
read the link properly to understand the process. Then,
read the instructions of the forms to understand what you need to do there (there is nothing anywhere saying you need a job to file, for example). To repeat the other link you were given earlier for filing a petition :
https://www.uscis.gov/i-130 Again, please take the time to read this page and its sections properly.
Second, just like you used to watch the visa bulletin for DV, now you watch it for F2B.
https://travel.state.gov/content/tr...in/2022/visa-bulletin-for-september-2022.html First table shows visa availability. You can see visas are currently available for F2B for petitions filed before 22 Sep 2015. So you can see there is about a 7 year wait for visas in this category. Second table shows when documents can be filed at NVC for the case (this will be some years after you file the i130, maybe 5-6 years). If your son is processing consular processing this is when NVC will contact you for submissions. If he is doing AOS (more on that below), this is when he can submit his AOS application.
Linked to above - part of the documents submission stage in 5-6 years time is the i864 affidavit of support. This is the stage at which you need to show income or assets. Again, you should read the explanations in the instructions properly to understand how to do this. Be aware that while you can use assets, using income is much easier and more straightforward than assets.
https://www.uscis.gov/sites/default/files/document/forms/i-864instr.pdf
Third, your son can do AOS
IF he is able to maintain a student or other legal status for the 6 or so years before he would need to submit documents under table B. Be aware that if he falls out of status, violates the terms of his student visa etc, he becomes ineligible to do AOS as your beneficiary either then or at any stage. Furthermore, if he is out of status for longer than 6 months and then leaves the US to try do CP, he may face a re-entry ban of 3 or 10 years depending how long he has been out of status. So it is
very important that he does not violate status. If his studies end and he cannot stay legally under OPT or a work visa, for example, then he needs to return to his home country and await consular processing. On the other hand if he is able to extend F1, do OPT, change status to H1B etc, then he can stay until he can file for AOS.
Fourth, F2B requires that he stays single. If he gets married at any stage before you become a citizen, then the petition dies. If you become a citizen before his process is complete then it is ok if he marries, but then his category changes to F3 and adds another 6 or so years to the wait.
So to sum up, you have a long wait ahead of you. Plenty of time to read up and understand everything. Just ensure that everything is done correctly so no complications in the future, especially for if your son wants to AOS.