Re: 1990's Shimano chainrings
The M730 SG rings have the name engraved into them (yours) but the MT60 SG rings (Deore/DX) have them etched/printed on. Unless you specifically want the engraved rings to match, anything with a 110 BCD (5 stud) will fit the M730 crank spider.
Ritchey, Onza, Pace, Specialized, are the better types amongst non-SHIMANO