In my experience, which has cost me thousands of dollars, your best bet is to do lots of research. Ask questions!!! Like Dutchy said look at the pics online but be careful. You may see something you want that is far beyond your expertise. Some nice easy plants to start with are your Anubias, cryptos, java ferns, mosses,and certain hygrophilas. You need to list your specs. Lighting, co2 or not, and ferts are your most important thing. There are lots of options out there for all that I listed. If your handy you can go to AH Supply online and use one of their kits which work great. They are very helpful too about answering questions about your best option. You cant go wrong with co2 but you may not want to use it yet. Your light loving stem plants are going to want co2 and ferts. I have used the Seachem line and it becomes very expensive over time. I switched to the EI method and it works great. A year supply costs a few more dollars than one bottle of Seachem products. CSM+B, KNO3, and KH2PO4 are the ferts that you will be using. You can get them at aquariumfertilizers.com or greenleafaquariums.com for great prices. Do your homework and get all of your equipment before you start your setup. It will save you time and money.
JJ