Can I use different brand calipers for the front brake calipers

If you really can’t find the original make then you should at least have a pair of the same make of caliper at the front, even if they are a different make to the rear.

Do make sure that the pipe fittings match - experience has shown that there can be minor differences that are sufficient to cause problems and you do not want sudden problems with brakes. And if there are multiple circuits make sure of the connections so the circuits stay as they should.

Also make sure the pads are matched axle sets.

Otherwise there might be performance differences that surprise you,

From personal experience: I've replaced front calipers, keeping the rears, and vice versa, depending on which ones were bad. As long as they get replaced in pairs I would not worry about whether they are different brands at all.