Personally, if I was a stay-at-home parent with dependents, I would consider any option that pays rather than volunteering my valuable time (unless money ain't a thang). Each hour needs to be accounted for as a parent of young kids. Sure you've been out of practice for a while, but you've still exhibited baseline knowledge within a certain timeframe.
I don't know what your area of practice was prior to your leave, but seems like you have a lead. Otherwise, life experiences are relevant to clinical knowledge so maybe pediatrics?
I strongly recommend uptodate, if you can swing the price of subscription, in a slow-paced setting like primary care. Medscape is fine, too. I wouldn't recommend a fast paced setting like urgent care, ICU, EM, unless you're guaranteed hand-holding. If you have time to spare, PANCE prep courses or books will be beneficial, but they're really manufactured to help you pass a standardized exam.
I'd also like to recommend wikem.org in an acute care setting.
Source: EM PA, parent to an old toddler and a 6 month old