I would say some decks are “better” than others for divination, and typically I’d advise someone towards more “standard” known decks, such as Rider-Waite, Marseilles, Thoth etc. Simply because they tend to get the “balance” of life a bit more accurately than many others I’ve seen. Many other decks often lean too far to one side, either too light and fluffy or too dark. This can skew the reading a bit, making things seem overly positive or negative.
That said, if there is a particular deck that you love and want then go for it. You will probably get far better results with a non-standard deck that you are drawn to, enjoy looking at and engaging with than a standard deck you do not enjoy much. It’s not just about the deck but about the person reading the deck, and different people have different aspects of themselves developed to different degrees - and so will be drawn to different decks and will find better results with those that agree with their current development because they can relate to the deck better. It is like reading your native tongue compared to a second language you’ve only learnt a bit of. I would just say be aware of any potential bias of whatever deck you are using and take that into account when you read.
As an aside, you do not have to wait until you can get a tarot deck to get started on your divination training. Even if you ultimately only want to focus on tarot, any other divination system you learn to use now will absolutely not be wasted time, and will help and enhance your ability with the tarot later.
Can you find some dice from board games? Then you can start learning to divine with them. No? Do you have a regular playing card deck? You can learn to divine splendidly with them too, and it’s close to tarot. Ok ok, you don’t play any of those kind of games. Can you get 3 coins together of the same type - nothing fancy just whatever your currency is. Then you can use those to start learning the I-Ching. Alright, I hear you, you’re homeless and haven’t got two pennies to rub together. Well, can you go somewhere and poke holes in the ground? If so, you can practice geomancy (you can do that with a piece of paper and a pencil too)
What I’m saying is, don’t let your lack of tarot cards currently hold you back from getting started now.