One young adult athlete romance novel is 'To All the Boys I've Loved Before' by Jenny Han. The male lead, Peter, is on the lacrosse team. It's a really cute story about young love. 'Simon vs. the Homo Sapiens Agenda' also has an athletic element as the main character Simon is friends with guys on the school soccer team and there's a great love story in there too.
For young adults, 'The Start - of - Me - and - You' by Emery Lord is a great pick. The male lead is on the swim team and it has a really nice coming - of - age romance aspect. Also, 'Open Road Summer' by Emery Lord has elements of a road trip and a male lead who is a musician but also has an athletic side, and there's a lovely romance story in it.