Talking about dietary laws with SDAs is like talking about speaking in tongues with Pentecostals. Or talking about predestination with Calvinists. Or talking about loss of salvation with Arminians.
If one holds to a particular denominational doctrine, they're apt to only be able/willing to interpret scripture through that lense.
That's why I'm non-denominational.
I think being non-denominational is an overreaction, and also not a solution to your problem, because most non-denominational churches are Arminian or Calvinist Evangelical churches with varying amounts of Charismatic practices.
I think you would be most at home in one of the broad church mainline denominations, like the Episcopal Church, the Anglican Church of North America, or the Uniting Church in Australia or the United Church of Canada or the Church of South India. A decade ago I would have mentioned the United Church of Christ but considering only a small minority of UCC parishes do not fly the rainbow flag, and the conservative parishes mostly left, and the UCC has shrunk faster than any other denomination, leaving just the hardcore liberal Christians, it no longer remains an option. One of the two breakaway groups, not the CCCC but the other one, is pretty broad church however.
I do sympathize with your dilemma; it is also a source of frustration to me how much alike all of the “non-denominational” churches are. I like broad church denominations which define Christianity kind of the way CF.com does, using the Nicene Creed, while tolerating multiple schools of interpretation.
The Orthodox Church and the Baptists are broader than people think; the best way to define Orthodox Church dogma, like Orthodox theology, is apophatically; it is easiest to say what the Orthodox do not believe in using the anathemas of the ecumenical councils. Within this “Pale of Orthodoxy” as I call it, one will find a broad diversity of opinions and practices, which is why the worship at New Skete Monastery looks nothing like the worship on Mount Athos or in a Russian Old Rite
edinovertsy parish, and why you have such a vast difference in eschatological views between Archbishop Lazar Puhalo and Elder Ephrem of Arizona (Memory eternal).
But the Orthodox Church is also very resistant to change, so doing something different can’t simply be imposed, whereas on the other hand the Anglicans are more relaxed about change, and the UCC used to be a place of relative doctrinal freedom in each individual congregation, before a politicized interpretation of the faith based on heterodox theologies like Liberation Theology, Womanist Theology and “Queer Theology” took over (the homosexual Cathedral of Hope joining the UCC was one of the last straws for me). Churches like the Uniting Church in Australia resulted from a merger of most Protestant churches into a single church, which creates a broad church with much room for individual beliefs.
Baptists, like the Orthodox, are also what I would call “semi broad church.” You will find Arminian and Calvinist churches, the polity is congregational, so each Baptist church is highly autonomous, and the Baptist faith also places the responsibility for interpreting scripture on individual members. The sine qua non of their denomination is Believer’s Baptism, and there are three different major Baptist conventions, the SBC, which is pro-life and takes an admirable stance on social issues like sexual morality, the American Baptist Convention, which is a mainline church, and the National Baptist Convention, which is historically Black. There are also Primitive Baptists, Landmark Baptists and a few others, some of whom are more constricting than the SBC, for example. But the Baptists ardently insist on Believer’s Baptism to the same degree Pentecostals are into speaking in tongues.
Also, some Quaker groups grant members quite a broad range of freedom, but I don’t think I could do waiting worship. The Orthodox at some monasteries say the Jesus Prayer or the Prayer Rule of Seraphim of Sarov, which is like the Rosary except without the themed decades, just the slightly different Russian Orthodox version of the Hail Mary, together, silently, and I think I could handle that more easily, since it is active prayer.
