For a practical guide to which knives to buy, American's Test Kitchen gives pretty good advice:
* https://www.youtube.com/watch?v=st6LggwoL_4
* https://www.americastestkitchen.com/articles/8204-three-esse...
* Under USD 75: https://archive.is/https://www.americastestkitchen.com/equip...
For most daily needs: chef's knife, pairing knife, serated/bread knife. Possibly useful 'extras': kitchen shears, petty/utility, boning, slicing/carving. They do not recommend sets.