The best option is to cut off any dead or dying leaves on your plants and take them out. Plants often expend a lot of energy trying to save dying leaves. Energy better spent growing healthier new leaves.
Nerite snails are always welcome in planted tanks. I love mine. Most snails will eat dead leaves, though. Many of the 'nuisance' snails like ramshorns eat them also. They used to be blamed for killing leaves but were later found to only be targeting the dying ones. I'm not saying to add them to your tank, only that they do the job your looking for. Nerite are popular, don't reproduce, and come in lots of varieties. If you have small leaved plants get small snails. If you have larger strong leaved plants any size snail should do.
You may want to check out the invertebrate section of the freshwater forum to see what's available and working for other people here.