hello everyone! Im looking for any yaoi were the seme (preferably) pick up a homeless uke,...

I recommend you this one,
http://www.mangago.me/read-manga/amai_jouken/

http://www.mangago.me/read-manga/matenrou_maybe/
http://www.mangago.me/read-manga/everyday_smile/ (ch.1)
http://www.mangago.me/read-manga/yume_ni_tobu_tori/ (ch.5 sequel)
http://www.mangago.me/read-manga/hinata_specials/ (2nd sequel)
http://www.mangago.me/read-manga/ashita_mo_koko_de_aou/ (bara)
http://www.mangago.me/read-manga/nichijousahan_bi_beautiful_life/

uke picks up seme instead:
http://www.mangago.me/read-manga/aimai_na_kankei/
http://www.mangago.me/read-manga/yasashiku_toraete/ (sequel)