If it were me I’d start with Woodford Reserve Double Oaked. It’s a good starter bourbon as is Basil Hayden’s. If you can find it, JTS Brown (Bottled in Bond, which means it’s 100 proof) is $16ish here in NC.
Of course the big name bourbon whiskeys like Jack Daniels, Jim Beam, etc are always gonna be there but they really are bottom shelf, IMHO.