good, great, real
exciting, interesting, remarkable, spectacular
The letters were a real find.

big, important, major, significant
rare
new, recent
lucky
A lucky find is telling us a lot about life 10 000 years ago.

unexpected
archaeological, fossil
medieval, prehistoric

discover, make, unearth (esp. BrE)
prehistoric finds made in an unexplored cave

yield
To date the site has yielded many interesting finds.

report
I reported my find to the landowner.

Find is used with these nouns as the subject:
archaeologist, autopsy, census, committee, court, enquiry, experiment, hand, inquest, judge, poll, report, research, researcher, scientist, study, survey, tongue, trial, tribunal

Find is used with these nouns as the object:
acceptance, accommodation, advert, advertisement, ally, alternative, amusement, answer, apartment, association, average, balance, bargain, bearing, blog, body, bug, buyer, cab, cause, client, clue, comfort, common ground, companionship, compromise, connection, consistency, consolation, contentment, corpse, correlation, courage, cover, culprit, cure, damp, date, defect, delight, deposit, destiny, diameter, difference, discrepancy, echo, employment, encouragement, enjoyment, error, escape, evidence, example, excuse, explanation, explosive, expression, faith, fame, fascination, fault, favour, fingerprint, first, fix, flat, flaw, food, foothold, footing, footprint, forgiveness, form, formula, fortune, freedom, friend, fulfilment, fun, galaxy, girlfriend, god, gold, happiness, haven, help, home, hope, hotel, husband, identity, improvement, inaccuracy, incidence, inconsistency, indication, information, inspiration, intruder, job, joy, justification, killer, lead, leak, link, location, loophole, love, lover, lump, mark, match, mate, material, meaning, merit, motel, motive, murderer, nerve, nest, niche, occupation, oil, opportunity, outlet, owner, paradise, parallel, partner, path, peace, perfection, pleasure, position, precedent, premises, pretext, proof, publisher, pulse, ratio, reason, reassurance, recipe, recruit, redemption, reference, refuge, relationship, relative, relief, religion, remains, remedy, replacement, resistance, resolution, rest, restroom, result, rhythm, role, romance, room, root, route, safety, salvation, sanctuary, satisfaction, saving, scapegoat, seat, selection, self, serenity, shelter, short cut, sign, similarity, site, skeleton, solace, solitude, solution, source, specimen, sponsor, sponsorship, spot, strength, style, success, successor, sum, support, survivor, sympathy, talent, target, taxi, tenant, thread, time, touch, trace, trail, treasure, use, variation, venue, violation, vocation, voice, volunteer, way, website, word, work, wreck, yearning