There are plenty of option now a days to take advantage of stable coins such as TUSD, PAX, USDT, USDC, GUSD, HUSD, DAI, USDS etc. Before choosing stable coins following points should be taken care of :-
1)Transparency — How transparent is the system? Does the system rely on the trust of a central actor? If so, are the procedures to view the inner-workings of that central system reliable?
2)Auditability — Can everyday users audit the systems financial fundamentals. Can the collateral be confirmed?
3)Stability Mechanisms — Assuming regular market operations, what factors keep the coin stable? Are they algorithmic based? Collateral based? Fiat based? What are the strengths and weaknesses of each system?
4)Fallback procedures — In the event of a failure in the particular system, how stable are the underlying assets. Do protections exist to return users funds?
5)Scalability — Can the system grow to support a broad ecosystem?
Source :-
https://medium.com/makerdao/part-3-the-strengths-weaknesses-of-stablecoins-62f13b592e3fRead this post also it will give you more knowledge about Stable coins
https://medium.com/makerdao/part-1-why-stablecoins-matter-3b273e1c529ehttps://medium.com/makerdao/part-2-a-primer-on-dai-3b6d1506fa83Out of Tether & TUSD i will choose TUSD because they provide monthly Audit reports of account holdings Where as we usually get news about tethers questionable audit quarterly which does not look safer to me.