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.