You can try Jayce for both mid and top lane. He's a fighter with enough burst to go all in after his short range w (x3 aa) poke and/or long range qe combo.
You can try Nidalee for jungle, mid, or top lane. She's very versatile in her build... bruiser or glass-cannon, although people nowadays prefer the latter. She also functions as a poke champion and can go all in once she lands a spear ability.
You can try Karma for mid/top if you ever practiced her as a support. She falls off late-game (?) but is pretty good early and mid-game with her q burst. You can build her semi-bruiser in the top lane - like iceborn, liandry's, abyssal, and all that jazz.
You can try Annie for mid/top if you ever practiced her as a support too. Pretty self explanatory I feel... in the top lane you can try your hands on a tankier rylai's and roa build rather than the glass-cannon itemization in the mid lane.
You can try Lulu for mid/top if you ever supported with her as well. I personally love her but don't see her carrying as much as others in the top and mid lane since she's mostly utility focused unless she gets ahead in terms of damage.
Zyra mid? Corki/Ezreal mid? Kennen top/mid? Koggles mid? I'm trying to see what you would like having practiced bot lane so much. I can't say there's a lot of junglers that have a bot lane groove to them... maybe try out both Nunu and Fiddlesticks or something of the sort.