Ones I forgot on Picard's list would be:
Guinan - as mentioned, they were beyond friendship and family and she likes bald men because one helped her once (him)
Lwuxana Troi - she has shown interest in him on mutiple occasions
Be interesting to tally up Riker's love interests v Picard's, to see who had the more. Something tells me Riker's is all reputation!
Ones I remember are:
- Deanna Troi
- Soren - from "The Outcast", from the androgynous alien race
- Etana Jol - from "The Game", where he brings that hypnotizing game back to the enterprise
- Carmen Davila - engineer Riker worked with and was to have dinner before Crystalline Entity attacked and killed her and others in "Silicon Avatar"
- Beata - Rule of Angel in Angel One, planet where women are dominant, Riker sleeps with her
- Ro Laren - in Preemptive Strike, where they lose their memories, the two sleep together and live shorty as husband/wife
- Brenna Odell - Irish redhead in "Up the Long Ladder", she seduced him while he washed her feet in his room
- Lanel - a nurse in a hospital Riker wants to escape, offers help but he has to make love to her to obtain her cooperation in "First Contact"
- Rebecca Smith - tactical officer he dated and was intimate with in "Genesis", they landed on a cactus plant
- Yuta - chef to Sovereign Maruk, Riker fell for her but she turned out to be an assasin targeting the other side of the negotiation
- Manua Apgar - in a "Matter of Perspective", wife of Dr. Nel Apgar, their contested interest in each other landed Riker in trial and led her husband to try to kill Riker
- Lwuxana Troi - announces Riker will become her husband in "Manhunt"
- Amanda Rogers - from True Q, this human/Q has a crush on him she acts on
- Guinan - while trying to teach Wesley how to act with women in the Dauphin, Riker flirts with Guinan where she quickly shoves wesley to the side to get more
- Minuet - as mentioned in Picards list, charmed Riker when the Bynars were working on the Enterprise
- Kamala - gave Riker a kiss before he turned her down and her attention moved on
- Lal - Data's Daughter gave Riker a kiss too imitating a couple in ten forward
- Enterprise - I've alway had the impression he was more in love with the ship than Picard. Turn down 3 promotions to stay on her. In the future saved her from the scrap heap by making her his flag ship as admiral. Was more broken up in the movies when D crash landed than Picard about it. Picard said the Enterprise was a great ship but didn't compare to the Star Gazer in sentiment to Scotty.
- Kira Nerys - If you want to include Tom Riker's exploits, she became quite taken with him and while I doubt he slept with her, did seduce her into trusting him in DS9 "Defiant"
I don't remember all. I didn't pay attention in the TNG movies, someone might add some.