Point of correction, Arsenal has quality forward players, maybe if you had said that they lacked depth I would agree with you easily. As per the attacking midfieder, they have Odegaard and he's still young and vibrant right now. Instead of splashing such figures on Florian Writz, th y should rather go all out for Viktor Gyokeres. Thoughts? Look this current Arsenal squad, what they need right now is a complete and proven striker who can convert goals. Maybe Alexander Isaak would be great name to mention too!
It's better to sign Gyokeres rather than Wirtz, what Arsenal need is striker, they don't really need Wirtz even though he's skillful and can play in many positions. Both Wirtz and Isak are already overrated, this will make Arsenal spend more money than they should.Take a look with his statistic, he's always perform in any match, if he not able to score a goal, at least he can give assist. If he can get a good results against Porto and International match, it means he's really that good.
According to the transfermarkt Viktor Gyokeres has 65 million of market price and i think this is reasonable price if we see from his quality and at Sporting he hasn't stopping to scores more goals with this team and his records is very fantastic because he can scores 10 goals from 6 matches in Portugal league and probably he is the right player to solved Arsenal weaknesses