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My thought is "buy quality cryptos and be patient"
Here is what I look for:
1 – look for a strong team with experience
2 – are they planning to or in the process of solving a real-world problem
3 – is the project transparent, accountable and active
4 – is there a clear understandable and on point whitepaper
5 – do they have a road map and are they following it
6 – are milestones set and achieved
7 – have they been accepted by large and reputable exchanges
8 – have they made partners in the business arena or are they actively pursuing same
9 – is their token truly needed for their project and not just a funding venue
10 – are they compliant and looking to be compliant and avoid legal troubles
11 – is there a large enough market for the project to be viable long term
12 – use critical thinking and look to find obstacles against their success
13 – is there energy, excitement and marketing effort being put forth and not just hype
14 – is there enough community support for the project to have it reach critical mass
15 – is the financing model flawed (such as pre-mined and mostly centralized, and/or highly inflationary)

And which would be those quality cryptos at the moment? Just curious on your thoughts?

There are several that have the qualities described. The fact that they are tanking at the moment does not change the fundamentals. A few examples are Etherium, Stellar, Icon, Cardano and NEO.

I agree with you, tough I have to document more on Icon. I would also add EOS.