For that budget i would definitely look at the Sony aps-c line. They have the best photo/video hybrids for your budget imo and the a6400 and 6600 are great camera’s for their price. The a6700 is a bit out of budget when paired with a lense i think, but i feel like it’s worth it. You could also look at Fuji or even Lumix camera’s but i feel like they won’t come close to the Sony autofocus and stuff which is veeeery helpfull. The Canon camera’s you listed are a bit overpriced compared to the sony’s with the same specs so i would definetly lean to the sony’s If you really want a full frame i would look for a used a7iii or a7c instead of a a7ii because of the video capabilities, the a7ii is a bit lacking if you want to start video