We are in a poor era for strikers at the minute. The great out & out strikers around are probably lewa, vardy and kun who are coming to an end. Followed by kane who I believe is going to be a perma crock. Following them you have lukaku, jimenez, etc.
Moving forward there aren't many targets who are exciting at all. The only 2 I would like who would bag 20/30 goals a year are haaland and (puts tin hat on) greenwood. I believe if managed correctly and attitude is good he is a great natural finisher. Not sure his contract situation but I genuinely think he will be a great striker.