Beckham WAS working on it, but to me it looked like it was a futile attempt and would never happen. I mean let's look at the details, one team is PSG, paying him tens of millions of dollars and he would be still playing at a high level without a doubt just as he did for 2 seasons, the other is Barcelona, is youth club he played nearly 20+ years and 15+ professional and won so many and they were willing to pay him a lot too, just that they would have to sell some other players to make it happen.
And another was Saudi Arabia, maybe not as good of a league that's true and they are "trying" something but so far have like 3 or 4 good players, rest of the league sucks but ONE BILLION!! dollars was offered.
When you see these, Inter Miami looks like a joke, and yet one way or another they convinced him, that's a big deal.
Barcelona FC was so keen in getting him but when Messi asked them, they cannot give a solid answer and was part of the reason why he did not return to Spain.
Anyway, here are some reasons that I found that might be reasonable enough on why Messi joined the Inter Miami FC and not Barcelona or Saudi Arabia.
1. Barcelona cannot afford it YETA sensational return to Spain was reportedly Messi's preferred option, and the club was also keen on bringing him back.
However, although they have managed to get the green light from LALIGA to make a move for Messi, they still need to make sales to fund the operation.
The Qatar 2022 champion wanted his future sorted as soon as possible, and Barcelona were unable to provide guarantees.
2. American branding/business dealAlthough he stands to earn nothing close to the reported wages offered by the Saudi club, the move to the MLS is lucrative and can be huge for Messi's brand.
According to the Athletic, Messi will reportedly receive a portion of the profits made by Adidas and Apple, two MLS-affiliated companies, for joining Inter Miami.
He will also reportedly stand a chance to own a stake in the Miami-based club.
3. His family Messi is evidently a family man, and they are involved in the decisions he makes.
According to reports, he did not see himself settling in Saudi Arabia with his family, hence the decision to choose Inter Miami.
Source:
https://www.pulsesports.ng/football/story/3-reasons-why-messi-chose-inter-miami-over-barcelona-and-al-hilal-2023060717292795788