So, you would first need to decide what medication you want.
Mounjaro is an injection and is the most effective but also the most expensive. The Monj website is a good place to start and check out the price ranges. Wegovy injections are a bit cheaper but they are less effective and have a slightly higher rate of side effects. There are links to a Wegovy price comparison site on Monj.
Then, if you prefer a daily tablet, you can choose from Wegovy tablets or Foundayo. Wegovy tablets are a little less effective than the Wegovy injections, but otherwise similar in their effect. You need to take them after an 8 hour fast (can be overnight) and with a small amount of water and then nothing at all for at least 30 mins.
Foundayo tablets are the least effective, but you can take them without the requirements for the Wegovy tablets. People on Foundayo lost on average about 11 to 12% of their starting weight after 72 weeks, compared to 14% for Wegovy and 20% for Mounjaro.
I would consider the costs, and whether each option is affordable long term and if/when you get to the higher doses. It won't just be the length of time needed to lose the weight, you'll need to consider your plan for maintenance. So, tapering back down to a lower dose, or staying on a particular dose level long term etc etc.