After reading your description carefully, first of all, the tooth you pulled out may be due to imperfect root canal treatment or no root canal treatment before, so the pustule you mentioned will appear. Generally, most of this situation can be cured. It is possible that the dental conditions you went to were limited, so I pulled it out for you.
Dental implants are definitely the best restoration scheme, but the price is a bit expensive. Porcelain teeth also have many advantages, but they need to grind away a lot of good tooth tissue. If you don't want to do these two kinds, you can consider making removable dentures, which are relatively low in cost and less harmful to your teeth. Prices vary from place to place, and some even vary greatly in one place. I suggest you go to several places to ask.