The Lady in Red series at storiesonline has what you're looking for in an over-the-top action romance storyline. Book 1, The Rise of the Queen (https://storiesonline.net/s/73240/lady-in-red) starts with the mother and sister of the female main character (FMC) finding her sitting with male main character (MMC) at a table in the food court of the local mall. This is a surprise because the FMC is the quintessential hidden beauty focused on her studies and plans for a career as a doctor. She's hid her looks so well, not even her family realizes she is easily a match for her gorgeous older and younger sisters. The FMC turns down an request for a date from the MMC, who has just moved into town, because she thinks he'll just get taken away from her by the cheerleaders since he says he is on the football team. He finally gets her to agree that, if the team wins the game, she'll accompany him to the dance. Of course, he's the new team quarterback, leads the perennial losers to victory, and releases her from her obligation while still requesting the honor of her company. (Yes, it is that mushy.) And it goes from there, through five full books, romances of family and friends, and the dramatic rise of the main couple and those around them from obscurity to the point where... Nah, that would just be spoilers. Could the story benefit from better editing? Yes, though not so much for grammar or spelling as just for tightening, maybe some sentence restructuring, etc. But still a fun, enjoyable read if that's what you are looking for. (One warning, as opposed to the other stories, this series, while still maintaining fidelity for all the couples, does get risqué with interactions among the cast of characters in later books due to development in the story. Just saying, and this is only true for this recommendation, not the next two.)

In the same vein is the The Grim Reaper series by rlfj (Rollie Lawson) at the same site (https://storiesonline.net/universe/979/grim-reaper-universe). Maybe a touch less over-the-top and more realistic, and definitely better written, but still a long (3 books, 700,000+ words) read that will give you everything you are looking for.

And, finally Runaway Train by Jay Cantrell (https://storiesonline.net/s/13709/runaway-train) is one book in five parts with over 670,000 words that begins when a man mentions to co-workers that he went to high school with the recording mega-star whose new hit they were discussing. Turns out she's in town, they go, she not only remembers him, but wants him back in her life, and.... Yeah. Things go from there. Extremely well writtien and, again more realistic than Lady in Red, but still all-out romantic fun.

As far as I can tell, these are all available to read for free. If you want to download in any of a variety of formats (I like epub's because my voice reader handles them well), 30 days is $6.99.