You mentioned you don't want to get a lawyer because your estate will be eaten up with fees. My Will cost $200 some years ago. It's probably more today, but not that much. When my wife died 11 years ago, my probate fees were $1200. Probate fees might be more when the estate goes to a brother - I don't know - but I just read that the average probate fees today for a simple, uncontested Will are 3-7% of the estate. So some of your estate would go for fees, but it shouldn't be "eaten up" with fees.
After my wife died, the first thing I did was to set up a fully prepaid contract with the funeral home with all my final wishes spelled out, because the funeral home where I live expects payment in full up front before they do anything, and the heir(s) may not have the money.
Next, I went to a local attorney and had a regular Will done, leaving everything to my cousin, and named him Executor. I had 3 originals done and put them in 3 places: one in my home (and I told my cousin where it can be found) one in my safe deposit box, and one is on file at the attorney's office. I did not file my Will with the County, because that makes it public knowledge, and I did not give an original or a copy to my cousin, because life circumstances can change, and I may some day want to make a new Will, leaving everything to someone else.
If your brother is unable or unwilling to serve as Executor, someone else can be named Executor, but provisions for their fee should be included in the Will.
Then I went to the bank and had certain accounts made POD (payable on death) to my cousin, but not all accounts. This will enable my cousin to get some money from my accounts to take pay probate expenses, house and utility expenses, etc., while settling the estate.
But to get the balance of my funds on deposit, he will have to go through probate because those accounts are sole ownership accounts. The attorney told me it's not uncommon after a death for some heirs to clear out every POD bank account, then just walk off and leave the house and contents, etc., so they don't have to bother with anything.