Hi..

https://www.mangago.me/read-manga/neko_x_neko/

https://www.mangago.me/read-manga/like_a_tidal_wave_from_pheromone_shower/

I have read these, these are cute, all of these are virgin x virgin:
https://www.mangago.me/read-manga/pygmalion_1/ (PEAK, green flag, idiots in love, smut in side stories)
https://www.mangago.me/read-manga/kyou_orenchi_yotteku/
https://www.mangago.me/read-manga/tenma_and_sakaki/
https://www.mangago.me/read-manga/what_i_can_t_tell_you/

I haven't read these so I don't know which ones are nice:
https://www.mangago.me/read-manga/neko_x_neko/ (heard lots abt this one being peak)
https://www.mangago.me/read-manga/thirst_1/

Other mangas with switch I have heard:
Playtime with Hakdo
Happy Shitty life

Tag that will help you find out switch couples, you can check ratings and read according to your taste:
https://www.mangago.me/tag/seke/
https://www.mangago.me/tag/reversible+couple/
https://www.mangago.me/tag/switch+couple/

Here you go dear, enjoy!
https://www.mangago.me/home/mangalist/2704304/

Thank u guys!!!