So, what I advise you to do:
1. look through top 100, 20, 10 coins on coinmark,
2. read about project,
3. chose which ones you like on the high level,
4. analyze these project even deeper,
5. choose 1,2,...10 coins,
6. prioritize them in accordance with your strategy,
7. and finally buy as many as your funds allows!
As simple as that
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