Hi,
I’m currently learning and memorising hiragana at a pace that is comfortable for me after recently starting to learn japense but I’d like to know of a good online resources to learn about Japanese vocabulary in the future once I’m at that stage in learning Japanese
I’d prefer that online resource to be free
The /r/LearnJapanese subreddit wiki is still the best place to find this kind of information, unfortunately. Maybe we start to populate our own to rely less on Reddit, but for now, I would start there (main wiki page), with a specific answer to your question being on the resources page.
For a personal answer, I’ve relied heavily on Anki (flashcard software) with a Core 2000 deck (e.g. https://ankiweb.net/shared/info/2141233552). There are lots of variants of the deck if you search for anki core 2000 deck, but they’re all vocabulary lists sorted by how common they are in everyday language. Super useful.