First, I'd decide how wide of tires you want. Many road bikes from that era can't fit larger than 28mm unless you convert to 650b. Many touring bikes from that era will max out around 35mm or 38mm. Hybrids from this era will typically max out somewhere between 38mm and 47mm. Mountain bikes from this era will max out somewhere between 2.1" and 2.5", or 53 to 63mm.