Hello tkchan007, and welcome to the friendly Camera Labs forum!
To enjoy your stay here please have a look at the house-rules
As to your Q: i hope others from the forum can give some advice. I use only a Nikon flash now but have fond memories of my old flash from German manufacturer Metz
who is still in business. I think
they still make great products. Have a look at the "System Flash Units", they should be optimally adapted to the specifics of each camera-manufacturer.
Thomas (beware: Nikon-fanboy and moderator!) My Lens Reviews
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