So you want to learn Gaelic
These are just some resources and organisations I have found/used in my learning so far
Sabhal Mòr Ostaig - The Sabhal Mòr Ostaig is a Gaelic school on the Isle of Skye. They offer both in person and long distance courses in a variety of Gaelic related subjects and a variety of levels. Obviously I wouldn't recommend taking on a full university degree unless you're really interested in that as it's a lot of time, money, commitment etc, but I've listed them because they're a major contributor to the Gaelic learning world. They also have online summer courses for learners of various levels
Duolingo - This is a great starting place. Their Gaelic course was created in partnership with the the Sabhal Mòr Ostaig. The full grammar notes for the course can be found here. From what I've found, this course is estimated to get you to roughly A1 going on A2
LearnGaelic - This website has a mixture of basic grammar intro lessons as well as a dictionary. I find that the dictionary sometimes has trouble filtering relevance of vocab, but overall I find it quite helpful
Gaelic Books Council - The Gaelic Books Council supports Gaelic writers and publishers, promoting and selling Gaelic books in a range of genres. They have both original works, and popular works which have been translated into Gaelic
Acair Books - A Stornoway based publisher of Gaelic, Scots and English books. They have a large selection of children's books which are great for beginner learners, but also have adult books
The Scottish Book Trust - A charity dedicated to reading and writing in all of English, Scots and Gaelic. You can browse their website for a range of poetry, prose, learning resources, writers' awards and fellowships
Am Faclair Beag - The Little Dictionary. I find this dictionary is slightly better at filtering by relevance than the LearnGaelic dictionary, so I often use it to cross reference. LearnGaelic has a tendency to give you the most obscure translation first, whereas Am Faclair Beag will usually prioritise more common translations
Speak Gaelic - Speak Gaelic is a series created by BBC ALBA. There is a YouTube series with Joy Dunlop, a podcast with John Urquhart, and a website with quizzes to test your learning. The initial series is roughly A1, with some of the later episodes aiming for A2. A good intro, though the website is known to be a bit glitchy
Beag air Bheag - Little by Little. Also by the BBC, this is a slightly more advanced series than Speak Gaelic, but hosted by the familiar John Urquhart. I can't find the exact CEFR level, but I seem to remember it being advertised as B1-2
BBC ALBA - The BBC's Scottish Gaelic programs. I occasionally scroll through their iPlayer. Some of the shows have captions which I find helpful, although not all do. Children's TV is always a great way to learn a new language as it is designed with children learning the language in mind. I think I saw they had some Moomin Valley last time I looked
Faclair nan Gèidheal - The Dictionary for Gayls (gay/queer Gaels). This is a great resource filled with a tonne of terminology relating to the LGBTQ+ community. This is where I get vocab like tar-ghnèitheach and neò-bhìnearaidh from
Open Book Reading - An organisation who run Gaelic speaking, reading and writing sessions both in person and online. I'd recommend looking at their Eventbrite page
The Mega Folder - I'm sure people have seen me talk about this before. I'd personally recommend Scottish Gaelic in Twelve Weeks