The hesitation you are feeling is understandable, but the good news is that the major services operating in this space are legitimate and have been around long enough to have established track records.
The four most reputable options for sending money to Georgia inmates are MoneyGram, Western Union, JPay, and JailATM. Each has been operating in the correctional finance space for years and processes millions of transactions. Your money is not going to disappear into a scam with any of these four.
Which one is best for your specific situation depends on the facility. Most jails and prisons contract with a specific service for inmate deposits, and that designated service is the one you need to use for funds to post correctly and quickly to the account. Using a service that is not contracted with the facility can cause delays or complications even if the transfer itself goes through.
The fastest way to find out which service your facility uses is to call the jail or prison directly and ask how to put money on an inmate's books. They will point you to the right platform immediately. You can also search the facility name on JPay's website since JPay has contracts with a large number of Georgia facilities and is often the answer.
Once you know the right service, the process is straightforward. Create an account, search for the inmate by name or ID number, and deposit funds. Most services charge a transaction fee that varies by deposit amount and payment method, so it is worth comparing fee structures if more than one option is available for your facility.
All four of the services listed are safe. Start with the one your facility uses.