I use Seachem fourish excel for my fertilizer, and as for the plants is it okay that I plant bacopa? The amazon sword and crypt have very big roots and would that choke the plants out?
Excel is not a fertilizer. It's like a liquid carbon. Most plants like it, but some, like anacharis, can be damaged by it if it's used in a big enough dose or too frequently.
I do plant my bacopa and it does fine.
Plants that feed from the water column will need a liquid fertilizer, one to start with is Seachem Flourish (not Excel) it should work fine for the easier plants like the ones you have. Anacharis, water wisteria, java fern, and anubia are all water column feeders.
Plants that feed from the substrate are going to need root tabs, and some of them will also need iron to be supplemented. Crypts, swords, bacopa, and repens are substrate feeders, and swords will also need iron.
I've found that the substrate feeders do best with some liquid fert in the water.