Ins
Kalidou Koulibaly
Ferran Torres
Houssem Aouar
Jan Vertonghen (LCB and LB cover)
Odsonne Edouard (potential Aguero replacement)
Koulibaly is a powerhouse, has experience playing in a high line and with the ball at his feet. He's right footed but has primarily played on the left side for Napoli so he can cover both positions. At 29, he's older than our typical signings but he is pretty much world class so maybe we make an exception. At his age, he won't really hinder Garcia's or THB's long-term development and progression. THB especially would probably benefit from being mentored by someone like Koulibaly. Koulibaly's leadership qualities would also be a benefit to the club.
Torres is right footed but doesn't really have a 'weaker' foot per se. Has primarily played as a right wing but potentially can play a variety of different positions across the forward line. Quick with good technical ability.
Aouar is a LCM. With David leaving, only Foden is penciled in at that position. KDB and Bernardo are both better as RCM. He is a goal threat with high potential.
Vertonghen is just veteran cover. I remember Txiki saying a month or so ago that teams will mostly be signing their 3rd, 4th or 5th positional targets due to the uncertainty this year in the transfer market. His play has slipped but we can do worse for a guy who'll provide cover at different positions and is PL experienced. I considered Ake for this position too but the only thing he has going for him is youth and the fact he's homegrown other than that I, personally, don't rate him at all. Vertonghen would be a cheap short term option, for now and would allow us to evaluate the position properly in the future.
Edouard is kinda out of the blue target but I really like his game. He is a big, tall guy who can provide something different from our current forwards. I've spoken to a couple of Celtic fans and they feel he's better than Dembele, who they previously had. Blooding in a new striker this upcoming year in case Kun doesnt sign an extension seems to be a good idea. Plus Kun isn't the most durable guy. Edouard is also the type of target that we can go after that doesn't unsettle Gabby.
I'd love to get another LB in but I've been pleasantly surprised with Mendy's overall progression this season. Of course he's had a few bad moments but overall not bad. With that said, I don't really know who we can bring in that can provide healthy competition at the spot. Chilwell is an option but I think he's massively overrated given the fee he might command and think he'll go to Chelsea. Renan Lodi is someone who I like but he has a long-term deal with Atletico. Theo Hernandez is another but he seems to be enjoying playing in Milan. Digne could be an option but I don't see Ancoletti selling him. Nouri (Angers), Mykolenko (Kiev) and Pellegrini (Cagliari on loan from Juve) are other promising young LBs.
My two cents.