Yes. But none of them will ever be as good as Pogba. You can try to sign great players for little money, and hope they'll come good. Or you can sign Pogba and be done with it for 10 years. For every Modric, there is a Henderson. If the club knew of any player who is better than Pogba, and cheaper as well, don't you think they'd sign him this instant? But they don't, and neither do I. There has been a funny and weird trend on this forum of people thinking everything that these expensive players do can be done by players who only cost half as much. Before Neymar signed, people thought Deulofeu was better than him. Before Suárez signed, people wanted Mandzukic instead. That's Liverpool mentality, and we don't want to be Liverpool.
I don't see how Pogba is such a sure thing anyway. This is a guy who spends a lot of time showing his swagger jogs up and down the pitch with few touches on the ball averaging about as many passes per game as Tevez. His impact on matches as a whole is barely ever worth speaking about and the most he shows consistently is his physical power (bullying people in duels) or sporadic bits of nice skill. His 'strengths' as a player are showing quality in spurts or abandoning his positioning to be an attacker, not much of a profile for central midfielders IMHO. Yet due to his hype/reputation/whatever people are soooo convinced that because he has talent and raw abilities at a young age, he can adapt to this system and a new role and that's why it's okay to go full Galactico to bring him here.
And I'm not entirely disagreeing with that sentiment. He does have talent and he probably would be able to adapt to a role here. But I strongly believe that success can be had for a hell of a lot less than 100M+. It won't ever be exclusive to Pogba. Midfielders aren't much like attackers in the make/break nature of being successful. If they have visible talent, good intelligence, and a certain level of quality/stature on the ball then it's just a matter of thriving within the system.
Rakitic/Modric/Kroos/Cesc have all been either important or absolutely crucial at their respective clubs for less than 40M. Thiago was very cheap for Bayern yet, injuries aside, he has often been the best midfielder on the pitch for them whenever he's featured. Even Ander Herrera shows the capability of being a key player for United in the coming years. It's not a matter of 'unearthing a hidden gem' like Porto or Sevilla do, just find midfielders that show the right skillset and a history of good performance and it's not really a gamble that they'll succeed. Playing in midfield is a lot more about fit/presence in the system than anything else, which is why it's not the case that every transfer is an almost-blind gamble and that the player with the biggest reputation is the smallest gamble therefore making it okay to shell out absurd amounts of money.
Players like Kovacic or Gundogan show a great passing range, great awareness of space/teammates, good technique, and have deep-playmaking abilities. Is it so hard to believe that they can perform in a system like this that suits their abilities much more than either of their teams do playing with teammates of a much higher caliber? I think it goes along the same lines of 'good talent can adapt anywhere' which is used to justify Pogba, yet in this case it's not even about force-fitting into our team but rather having their innate qualities amplified by the football we play.