@John Colagross Hey John, welcome to Bigger Pockets! I live in Florence, AL and I grew up in Muscle Shoals, so let me know if you want to meet up. You got some great advice already. HELOCs are great.
Personally, if you can afford the payment, I would do a maximum cashout refi (75-80% depending on the lender). I say this because we likely have huge inflation coming soon, and I would want to lock in that super low rate instead of a variable rate with the HELOC. I just did a 75% cashout and then got a HELOC on top of that.
Redstone Federal Credit Union does HELOCs on your personal residence up to 100% LTV ( I just did this) and they pay for the appraisal. No closing costs at all for you. But, not just anyone can become a member, check out their website. If you don't qualify at Redstone, First Southern Bank (Trent Jordan) or Listerhill Credit Union may be a good option. At Listerhill, Stacy Aldridge is a good loan officer for personal residence, and Russell Allen is great for the business side. Dee Dee Kilby at Integrity Mortgage Group seems pretty great so far too (I haven't closed yet).
Send me PM and I'll be happy to help any way I can!!