Hi @Jerome Thompson,
I've been there before myself and there's a few strategies to keeping the locomotive going. Definitely a non-exhaustive list and I'm not privy to your exact situation but hopefully this helps.
1. Is there any equity in your current property? Did you do any improvements that increased the value? If so you can look into Cash Re-Fi (not as popular these days with high rates) OR look into Home Equity Loan / Home Equity Line of Credit. I've used both and it really helps to keep your original mortgage rate but still take a little money out. It's essentially a second mortgage. This helped me get my second duplex and then it helps fund some flips I've been doing.
2. Like Brook said, if you find the deal, they will come. I personally would start with family members and ask if they would sign a promissory note with simple interest so that you can take that loan and invest in buy/holds. It may be hard to leverage that money with a lender but they are out there OR you can simply take the money and buy properties cash if the loan is big enough. Lastly, you could get them involved with the deal. This would make lenders more comfortable lending to you, but it may be a harder sell for the family member versus just a promissory note.
3. Move out of your home and buy another home. Keep the house-hack machine going and don't sell your original home. Honestly, I would do this strategy if I could but I have a partner who doesn't want to move. This is a very easy way to keep acquiring properties. Just keep buying and moving out after a year.
4. Pivot to flipping? Find hard money lenders who will lender 80-90% LTV and either refi to DSCR or sell to get some cash in your pocket.
There's unlimited amount of ways but those are a few.