Hi akina_subtitude ,
Welcome to the Forum,C-rul

I think that you will find the answers that you are looking for without too much trouble. Just as a start can I point out the search box that is located in the top right hand corner of the main Forum Banner....and if you have any other questions then please feel free to post them and someone will come along shortly who can help you with an answer.
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As to the choice of tanks, that you asked about.......It depends on what you would like, and of course how much money you would like to spend ??.....If you are new to the hobby and are not absolutely certain that you will like it then please do not buy a Tamiya as your first tank....They are Very Expensive and also have to be fully assembled from a very large number of parts.
So I would suggest that you buy one of the more modern of the Heng Long tanks, and by that I mean one that has actually been made/ manufactured Recently in the factory so that the actual control unit in the tank IS smoke and sound and that it IS an RX 18 unit. It will look like
This inside the tank.....

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The above picture is the most recent of the control boards, it is certainly the most reliable and all of the components simply 'plug' into the sockets...without any soldering needed at all !
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DO NOT...under any circumstances buy THIS tank, that I have pictured below ......It is an Old Design and did not actually ever exist

.....In the early days Heng Long...'Made' this tank up....It is PART of a panther top that has been made to fit the Tiger tanks hull and wheels etc....The line that I have marked in the photo is where the 'top' is stretched to fit the hull....There are a very large number of these tanks around because they did not sell......They are certain to contain the earlier circuit boards as well so please do NOT waste your money by buying one.
The tank that has the largest amount of internal space to allow you to reposition pieces or to add things is the Tiger 1.....but the king Tiger is Heng Longs most recent tank so it also has the best detailing, with probably the highest price of the Heng Long range of tanks. If you make a 'short list' of the tanks that you like the look of and then put it on here you are bound to get some good opinions of them from the other members.
I hope that this helps you to find a really good 'First' tank.
Alb.

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Never Forget......
The Propaganda of the Victors....... becomes the History of the Vanquished