Chris,
Welcome to the forum. The first place to look is in the information sections. Read all you can about the donation process, what it takes to qualify as a living donor, the medical risks, the financial risks, future health issues, life insurance and health insurance. There is a lot of information on this site and some of it is tucked away in different sections so take your time to read it through.
If you still want to pursue becoming a living donor you can see if a family member or friend is in need of transplant. Often patients do not publicize their need so someone you know may have kidney disease or on dialysis and you may not even be aware. You can contact your nearest transplant center to see if they accept non related donors and they can match you up with someone if you pass the initial medical consultation or you can participate in a donor chain where you donate to someone who has a willing donor but does not match and create a chain donation. There are also sites like matchingdonors.com where recipients post looking for a donor and also on this forum in the "Looking For" section. I recommend being near your home town so that if you do have a problem you are close by. Sometimes donors find it difficult to follow up especially if they have had a complication, if they are far away from home.
If surgery is not the route for you you can become a blood donor, sign up with one of the bone marrow registries and wait to see if you are ever needed. Organ donation is not without risk so if you are the bread winner for your family you may want to consider waiting till your family is not so dependent upon you. As I am sure you are aware, payment for organs is illegal so you need to be financially stable to take time off from work to recuperate and leave room for extra time in case of complications. You may be eligible for some financial assistance but you need to qualify for that and you should have your own health insurance so that you can follow up yearly for screenings to make sure your one kidney is functioning properly (if you choose kidney donation). It is legal for donors to be reimbursed for lost wages and travel expenses related to the surgery. The actual surgery is covered by the recipient's insurance or their Medicare. Most centers will give you a one time follow up and then ask you to send in blood work and labs 6 months, 1 year and 2 years after surgery. After that you are expected to have your own doctor follow your care. You need to maintain a healthy lifestyle, good diet exercise, make sure you do not get high blood pressure or diabetes as this will put an extra burden on your lone kidney.
Ok, so that is just a start. Hope this helps. Best advice, be an educated and informed patient.
Good luck,
Sherri