looking at the spot coin market I do not see altcoin that survive with the previous price and almost all their prices down but there are some coins that the decline is still acceptable and start up the lagand I hope the coins that I have the price will rise again

Is ripple is a good coin? It dosen't change much as others like bitcoin

In my opinion, it is better to make your own research and trust your guts.

The most of the privacy coins are undervalued right now.

The best opportunity is to find a privacy-related project with a low total supply (less than 100M), that way the price will be increasing much faster.

I recently found one project called Ethereum Meta, it is related to anonymity and untraceable transaction. They have a very interesting project to build the Anonymous E-Market Place.

They are on Pre-ICO stage right now, you can check their website: https://ethermeta.com/
Or even better go through their Bitcointalk thread: https://bitcointalk.org/index.php?topic=2659058.0

The best Altcoin IMO (regardless of the price) is Ethereum. Basically it is in another league compared to bitcoin and is the progenitor of all Tokens with its smart contract implementation. It has one of the most active developers out there too and is continuously evolving.