What is better for begining?
I'd like to earn enough money for me(to 500$ a month). But I don't choose kind.
Where is easier to raise ur money? Cash games or MTT or Spin&Go?
Which limits I should choose for good result?
If you're just 'beginning' like your post implies/suggests, then you are asking the wrong question.
The main thing that will guarantee succes (in this case +$500/mth.) is learning how to play the game (whatever format that might be).
Perhaps your question is meaning this >
If you're new to the game & are looking into putting in the necessary work, time, study to become a 'winning' player, which format would be easiest to do that with?
Again the answer is 'it depends'... because if you don't particularly like the format you won't be as willing to dedicate the time & energy to getting the best you can get at it.
BUT to give you some kind of an answer... I would suggest starting out with regular speed SnG's (single table) or 2nl FR cash tables. Put some time in and get a better understanding of the game.
Then, I would likely continue with Sng's & MTT as you'll generally find weaker players in these vs. cash tables. You will find bad players in both but there's something about MTT's that seems to attract the most fish (& a common thing you'll hear from them is something like this "I do pretty good/okay in Tournaments but I'm not too fond of the cash tables." (< & then varying reasons for this could be "They're too boring", "I always lose on them", "I win a bit for awhile but then always don't seem to leave the table when I should & I end up losing all of my stack" (< just a comment like this
tells you the person doesn't know what cash tables are all about, & are still playing them with tournament-thinking in their minds).
tldr, cliffs - Play micro STT SNG (single table tournament - Sit 'n Go)
Then put in some time on 2nl Full Ring cash tables.
focus on STT-SNG, & MTT
Once you get good at something, you'll be able to find your way. I personally used to like the 27man & 45man 'regular' speed SnG's and believe they're a game that has potential to have a decent ROI (used to see 10-14 tabling regs. in those with ROI 20 to 30% which is wayyyyy higher than any others I'd seen before)