Most home gyms do a great job training hamstrings through hip dominant movements. You can deadlift, Romanian deadlift, perform good mornings, and add single leg hinge variations. All of those are excellent exercises. The problem is that they all train the hamstrings the same way. They are hip dominant. What you are likely missing is a knee dominant hamstring movement, which means some form of leg curl.
The hamstrings are made up of four muscles. The biceps femoris has a long head and a short head. Then there are the semitendinosus and semimembranosus. The three long muscles cross both the hip and the knee joint. That means they are trained when you hinge at the hip and when you bend the knee. The short head of the biceps femoris only crosses the knee joint. It is only trained during knee dominant movements such as leg curls. If you never perform a curl variation, you are missing direct work for that portion of the hamstrings and undertraining the shortened position of the others.
If you look at a basic home gym setup, a power rack, barbell, plates, adjustable dumbbells, bench, and even bands, you can cover nearly every major movement pattern. In GymScape, that type of setup can cover close to 197 exercises, and over 30 hamstring exercises. The issue is that all of those hamstring movements are hip dominant. Knee dominant coverage is zero.
You could solve that by adding equipment. In GymScape, if you filter by new exercises for hamstrings and select knee dominant, you will see options like the Prime Prodigy Smart Arm, various leg curl machines, or a glute ham roller such as the Force 6 Fitness unit. Those are great additions if you have the space and budget. But you do not need to buy anything new to start addressing the imbalance.
The first option is the rack Nordic curl. Using your existing rack and barbell, you can set the bar low in the rack and load it with enough weight to keep it from moving. In the example shown, 315 lb is on the bar to ensure stability. You anchor your ankles under the bar and kneel on a mat, crash pad, towel, or even directly on the floor. Bands can be looped over the rack and around your shoulders for assistance. Two light bands work well because they allow you to keep your shoulders evenly positioned.
From there, you lower yourself under control toward the floor, catching yourself with your hands if needed, and then push lightly to assist on the way back up. Over time, you reduce band assistance and build strength in the knee dominant pattern. Most people will find they are far weaker here than expected.
The second option requires nothing more than a towel. The towel leg curl is performed by lying on your back in a bridge position with your heels on a towel placed on a slick surface. Hardwood floors work best. From the bridged position, you dig your heels into the towel and slide your feet toward your hips, performing a leg curl. Furniture sliders on carpet can work as well. While this variation is harder to load progressively, it trains the pattern and directly hits the hamstrings at the knee.
These two movements, added alongside your deadlifts and RDLs, restore balance to your hamstring training. You do not need a dedicated machine to fix the problem. You just need to understand what is missing and use the equipment you already have more creatively.