If they are IKEA, you can look to see how they are built, but I expect by the time you've made them look like one unit, it would be cheaper and easier to just buy one, because you're always going to have a seam in the top.

Thanks you two I think you’re both right!

If they were mine this is what I would do. Remove the tops if possible and replace them with a one piece top. If the tops can not be removed, which is highly possible, I would cut off the overhang on each one in the middle, screw them together and put on a new top.

Same as taking a driving tour of National Parks what you desire is simple,,,,,IF,,,,,,,you have the tools and skill. The fact you had to ask makes me think you might be lacking in one or both but here it is. If there is sufficent clearance between tops of doors and cabinet top overhang,add faceframe for doors and trim doors to fit.. With cabinets squared and perminatly joined,sand finish off top and apply Formica or wood veneer of your choice. No need to worry about laminate overhanging top we can fix that.

Trim laminate and profile edge of top with ball baring guided router bit. Flush,ogee or cove will look nice.

Thanks to both of you!
Lorraine funny I was thinking of doing the same. I am going to try its ikea so the top should come off I’ll keep you posted.
Thanks klem1 I understand everything you said how to do it I just don’t have enough skill im just a new diy’er not a refurbisher but good to know if I ever do one

But klem1 what wood putty would you recommend if I cut the over hang screwed them together filled in line gap sanded and painted

Or I might just fill the top gap line sand and put a vinyl marble like wallpaper

Would I have to do like hard core bondo or would a wood filler be ok?