The only coin i still hold besides BTC is XSN and i stake it on stakenet.io (pooled staking. site works for other pos coins too). I think it is massively undervalued and reached the bottom a couple of weeks ago. so i use it to gain stakes on a part of my savings in a way of diversification.
Besides that the dev team of XSN is creating quite some new tech like cross chain pos and a masternode network of 1700+ MNs that will host a truely decentralized dex. So i think it brings the right characteristics for an invest for the next bull run