No matter what your land objectives are these days there is plenty of information on the internet to help you research. I have been doing this several years now and I still keep finding new sites and APPs that are helpful. The federal government has many programs to help study uses for land and private companies offer many tools to study with.
Helpful Resources
United States Department of Agriculture
Louisiana Department of Natural Resources
LSU AgCenter
Natural Resources Conservation Service (NRCS)
https://www.nrcs.usda.gov/wps/portal/nrcs/site/national/home/
US Forestry Programs
https://www.fs.fed.us/spf/coop/programs/loa/index.shtml
Ducks Unlimited Habitat
http://www.ducks.org/conservation/waterfowl-habitat
Louisiana Land Bank
https://www.louisianalandbank.com/
Southern Ag Credit
https://www.southernagcredit.com/
Google Earth
https://www.google.com
onXHUNT
www.huntinggpsmaps.com/
Gaia GPS
https://www.gaiagps.com/
There are many other sources out there. You can google any parish or county office to get access to tax assessor records. Let your fingers do the walking and save time.