Where can I find dictionaries for English levels?

Question

IT education

Good afternoon.
Question from an English learner (like all of you at one time or now).
Often the volume of the dictionary (as well as knowledge of grammar, reading, pronunciation) is tied to certain levels (usually there are about 7 of them) -
Beginner-Pre-Intermediate .... Advanced ... or
Basic-Intermediate-Proficiency
They even make adapted literature based on them (Penguin, Longman...). Word volume is usually 300 for beginners.. 1500 for intermediate... 5000 for Advanced (roughly).
It is clear that at the intermediate level you already know all the words for Beginner (ala mother, to have, green ...). But at levels above average, the chance to "miss" a word increases (for example, thigh (thigh) is present in dictionaries just above the initial level).
Actually the question is: Where can I find these same dictionaries with an increase in the gradation of complexity in order to gradually add unfamiliar ones for memorization by looking at them? Well, by type, 300-500-1000-1500-2500 words are necessary for everyday use. On many online resources, either by frequency of use or by type, 100 common verbs, 200 nouns, etc. (but it's still not the same).
PS Sorry for the confusion of presentation.

Answer 1

habrahabr.ru/company/lingualeo/blog/254721
(there are links to 300 500 1000)
specifically the approach itself https://en.wikipedia.org/wiki/Basic_English

Answer 2

I would recommend a small book: Pavel Litvinov "3000 English words. Memorizing technique " - the words are structured by topic, very convenient and effective, if someone tells me the electronic version of his methodology, I will be very grateful!

Answer 3

I myself will also answer:
If you do not download -
memrise (there are dictionaries for 500/800/1000/2500/12000+ words),
lingualeo (300/500/1000).