Humminbirds can use Lakemaster and Navionics digital mapping.
The product that is best for you is the one that has the waters you fish and has the detail you want.
You can download the Lakemaster lake list from the Humminbird Lakemaster website and look for waters that are Lakemaster High Definition Survey-- those a very good.
You can view the current maps on the Navionics website's Web App. That is updated daily. If that has what you want, you can get the exact maps by updating a Navionics card you purchase.
Navionics Hotmaps Platinum South Region and Navionics+ would be the two choices.
Both of those can have the user generated HD contour mapping layer called Sonar Charts downloaded when doing an update.
Humminbird Helix 12 SI, 1198c SI, 1198c SI, ONIX 10 SI NT, 360, RC-1