You can first select the Business Template on the front page. After that, you can go to Widgets and insert the TG: Services widget in the Business Top Sidebar. You can take reference from the following link. https://docs.themegrill.com/spacious/
I don’t know about this because I also want to add TG service at my website homepage but if you want to get some ideas about this then you can visit this site because here you can see the best example of this and I liked their work so much but I am not sure yet. If you will like it, then, please give me some suggestions also.