if you want to invest in altcoins, this is the right time for you, because all altcoins are very cheap, buy good altcoins like the one below:
1. ripple
2. cardano
3. Holo
4. nem
5. dogecoin
I think investment on ripple it's more better than there are two kinds that you are mentioned above because it has the ability to overcome again to the normal pressure but it takes time so if you are a long term investor then you can definitely do it on ripple