The best replacement for 70d is 6d.

The best alternatives to 70d are rated as following:
★★★★★  6d
★★★★★  60d
★★★★★  7d
★★★  t5i
★★★  d7100
★★  5d mark iii
★★  d7000
★★  5d mark ii
★★  t3i
★★  d5300
★  nikon d7100
★  t4i
★  d5200
★  gh3
★  t2i
★  50d
★  nikon d7000
★  sl1
★  canon 20d
★  5d
★  a77
★  canon 7d
  canon 6d
  nikon 7100
  700d
  nikon d5200
  canon t5i
  20d
  7d canon
  canon 60d
  d3200
  sony a65
  rebel xt
  minolta 7d

Your alternative for 70d is not listed? Suggest!
Speaking about 70d, one probably shouldn't forget about sigma 18-35.

Other search terms related to 70d and their ratings are:
★★★★★ sigma 18-35
You have in mind a companion for 70d and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of 70d in all years. Click on graph for more.
70d
6d
60d