Herbert W. Armstrong is founder of Church of God. It is charismatic. It has a nice biblical name like "Church of Christ". Keep in mind though:
And so I have made it my aim to preach the gospel, not where Christ was named, lest I should build on another man's foundation, Romans 15:20.
Last I looked, they "splintered" into about 45 denominations, all or most bearing the name "Church of God". They recognize the Sabbath. I have never attended, but studied on the matter.
Hope that is helpful.
You might try here.
WCG: From Cult to Christianity