Here you can find a full Final Fantasy VII Remake Walkthrough with a Missions List including all Side Quests. Final Fantasy 7 Remake Part 1 has 18 Main Chapters and 26 Side Missions (Odd Jobs).

This Walkthrough also points out the locations of important collectibles in each level. Completing all 26 Side Quests unlocks the Best in the Business trophy. In Chapter 9 you can only get 3 of 5 side quests in a single playthrough for the trophy. The remaining 2 you must do via chapter select. You cannot get all Side Quests in a single playthrough. Anything you have missed can be done through chapter select, which unlocks after beating the game for the first time on any difficulty.