I'm just back into the hobby. I've been going Congressional, though it is overpriced. That said, I picked up a 20" Fluval Fresh and Plant 3.0. The fish room is nice. The main plant tanks are OK, mostly a vast array of swords, vals, and Anubias, but there are usually TC cups by the counter with some interesting stuff. I picked up some R. macrantha mini red this past weekend. They have shrimp too.
I found some stuff at Tropical Lagoon which is a hole in the wall but has a tank packed with stem plants. The owner didn't seem to want me to linger, likely because of COVID.
Good to hear House of Tropicals is worthwhile. Back in the '90s I worked at Aquarium Center in Randallstown and we had a dim view of them.
I was pleasantly surprised at Petco across from Congressional. They had New Life Spectrum food, bags of dragon stone and seiryu rock, marimo balls in cups, the whole Seachem Flourish line, and I left with a tiny 1g Aqueon cube for $15 on sale to scape. There were some grim looking plants in tubes - I don't know whether they were salvageable and didn't care to try.
By the way, the guy at Petco mentioned a DMV plant group that sells/trades cuttings but Google is not turning anything up for me. Is anyone familiar with this?