There are many options with oak / warm wood cabinets. I went with light counters and backsplash - I just prefer lighter surfaces, but like you I also like the wood.

When you change out the range, consider putting in a stainless hood and using a small countertop microwave or have a cabinet retrofitted with a microwave shelf. A dedicated hood looks better and functions way better than on over the range microwave. I have white appliances, but my kitchen has a more vintage / cottage look, and so I have a wood hood. I did add the hood later - stained it to match the cabinets, but that would be more expensive than a good stainless hood. I would make that decision before changing the counters and backsplash because a hood vs. over the range microwave will affect your backsplash. My microwave used to be on a microwave shelf, but I am short and did not like it so high, so I retrofitted the space with spice boxes and a plate rail.

My island is a free standing Amish made piece which just happened to be a good match to my cabinets. You could do similar, but it also comes in colors - I've seen similar in white, black, sage green and gray/blue. For a many years it had a simple home center butcher block top on it, but recently I had the same quartz as on my cabinets put on the island. The downside to a free standing / non built in island is that it does not have electrical - so no outlets. This does not bother me, but if you wanted to change the microwave to a microwave drawer in an island, you would need to have an island built in with electrical - a much more expensive plan but it looks like you have the space.

I have a "short apron" Whitehaven apron front sink which can be installed on a standard sink base cabinet if that is part of your style. The sink is presently on backorder, but should be available in a couple of months.

My most functional change was adding under cabinet lighting between the sink and range. It is the most useful thing I did. My older eyes love the extra light, especially in the winter months, and it just makes the kitchen look brighter and prettier. It would be a must if you do darker counters.

My kitchen:

https://www.houzz.com/photos/my-pics-work-in-progress-phvw-vp~110720042

https://www.houzz.com/photos/my-pics-work-in-progress-phvw-vp~109854029

https://www.houzz.com/photos/my-pics-work-in-progress-phvw-vp~109854052

I also have a wood kitchen idea book with other possibilities of countertops and wall colors.

https://www.houzz.com/ideabooks/75202366/thumbs/wood-kitchens