Beautiful selection of plants, I love the way your tank looks! For ferts, I've heard good things about Aquarium Co-op's Easy Green and NilocG's Thrive line!
I was recommended (by a friend) and use Thrive, but so far, I'm a little neutral on it. The composition of it is great and really helped my plants with some deficiencies from when I started out with Flourish. However, my biggest gripe is I personally have to pump it into a cup of water and swish it around before putting it in my tank. I was originally pumping it straight into the tank and it would make my nitrates 40+ ppm according to my test kit. Diluting it with aquarium water has helped a lot with preventing too much nitrates. Despite my complaints, I do like it and I don't have to dose super often due to only having a 10 gallon and a mixed needs plant load (dwarf hair grass, various Anubis, buce, 1 huge bundle of java fern, bacopa and dwarf aquarium lily).
Definitely keep up with using root tabs, especially with all those swords! I would get some extra suggestions and/or do some research on opinions. I haven't used EasyGreen, but I'm sure someone can share their experience with it. I like Thrive, but I wish I was able to try EasyGreen because I'm sure it would've been fine.