Supports - What Should I Try? Major Problem - RUNES

I'm Mastery 6 with Janna and I'm scared to branch out. I do really well with her. One major problem is that I don't have the runes for a lot of good champions. It took me this past two weeks to get Janna and Sona's runes. It burnt me out so badly. In game, I've gotten to the point where I'm 8-16 hours in and numb just needing runes.

I have all the champions up until Illaoi.

Here is my runes list: Quints - AP x 3, AD x 3, Life Steal x 2, Movement Speed x 3 Marks - Armor x 9, AD x 9, Attack Speed x 9, Magic Penetration x 8, Crit Chance x 1 Seal - Armor x 9, Health x 9, Scaling Health x 1, Glyphs - AP x 9, MR x 9, Scaling MR x 9

What champions can I main support with those runes? I need to finish getting scaling health. Janna needed base health according to a guide I googled and it was 820 IP per rune. It took forever.

I would like to try Nami. I have the runes suggested for her. I would like to try Sona but her songs are confusing and I'm procrastinating using her. I have her runes. I really should try more aggressive champions, too... but Janna is just so good.

Thank you!