ClickUp offers Gantt charts as one of the viewing options for Spaces and Lists, a really helpful feature to give an overview of workload, with the option to amend the scale anywhere from an hour to a year. It is also possible to view your projects on Gantt charts on Trello, but this is a “power-up” for your board. It’s worth remembering that in the free version you only get one power-up for each board, so you’ll need to think carefully about what is most important to you, or upgrade to one of the paid-for packages where you have unlimited power-ups and app integrations.