@Zachary Harr
Fellow Midwesterner (from Upper Peninsula of MI) and was also pretty low income. Amazing how that can have an impact on our drive, passion for learning, and resolve to be financially secure, huh?
I read your post and everyone else's here and not one person knows how much protection you currently have in place.
As someone who was accustomed to thinking (mostly) "offense only" I can unequivocally say that the best offense means nothing without good defense.
Offensively, you seem to be well positioned offensively.
It's hard to say what to do next because we only know how your offense is set up.
What happens to you or your wife's plans if either of you lose your high paying W2?
What happens if your home or investments are underinsured and you get sued?
What happens if your primary residence burns down?
What happens if your HYSA bank holding $400k goes insolvent?
Cars are owned but how are they insured?
Are you insured? Your wife? Your kids?
Permanently or temporarily?
Statistics on people's insurance coverage amounts shows that they are VASTLY underinsured. Just facts, not FUD.
Things to think about.
I know personally, and not just because I sell life insurance (gasp!) but because I also practice IBC, that I would be max funding a whole life policy NOW so I would be storing my cash in a more beneficial location than a HYSA, can leverage the money no questions asked for any future investments you might decide on YET still earn interest and likely dividends on the cash value, flexibile repayment terms, and protections on the backend for you and your loved ones.
Not to mention tax deferred growth and a future tax free income stream of dividends up to your basis.
Could also serve as a 529 equivalent (didn't see it above) for your children if you didn't put policies on them.
Without knowing all the details it's hard to say. Others bring up good points but my free cash goes towards my whole life policies FIRST because of all the present and future benefits it offers.
Happy to chat about it, get to know you and see if I can help you. Shoot me a message.
Best wishes and be blessed. Sounds like you're doing great, rooting for ya!